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Guide:Duke Fishron strategies

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Duke Fishron Trophy.png "The mutant terror of the sea..." Duke Fishron Trophy.png

Duke Fishron is a tough Hardmode Boss and one of the final Bosses in Old-gen console version Old-gen console, Mobile version Mobile, and 3DS version3DS versions of Terraria. With very high movement speed, high damage and deadly sharknadoes, it's the one of the most difficult bosses in the game.

Duke FishronFirst Form
Duke Fishron.png
AI TypeDuke Fishron AI
Damage100 / 140 (melee)
90 / 100 (Sharknado)
100 / 140 (detonating bubble)
Max Life50000 / 60000
Defense50 (100 when enraged)
KB Resist100%
Inflicts debuffBleedingBleeding
33% chance

Debuff duration3 - 10 seconds /
6 - 20 seconds
Debuff tooltipCannot regenerate life
Inflicts debuffFeral BiteFeral BiteDesktop VersionConsole Version
33% chance

Debuff duration3 - 10 seconds
Debuff tooltipIncreased damage, Decreased life regen, Causes status effects
Immune toPoisonedOn Fire!ConfusedFrostburnVenomStunned
Coins 1 Gold Coin
Map Icon Duke Fishron.png
Map Icon
Duke FishronSecond Form
AI TypeDuke Fishron AI
Damage150 / 201 (melee)
160 / 200 (Cthulhunado)
Max Life25000/50000 / 30000/60000
Defense40 (80 when enraged)
KB Resist100%
Inflicts debuffBleedingBleeding
33% chance

Debuff duration3 - 10 seconds /
6 - 20 seconds
Debuff tooltipCannot regenerate life
Inflicts debuffFeral BiteFeral BiteDesktop VersionConsole Version
33% chance

Debuff duration3 - 10 seconds
Debuff tooltipIncreased damage, Decreased life regen, Causes status effects
Immune toPoisonedVenomOn Fire!ConfusedFrostburnStunned
Coins1 Gold Coin 10 Silver Coin
Map Icon Duke Fishron.png
Map Icon

Spawn Condition[edit | edit source]

Duke Fishron can be spawned by using your Fishing PoleFishing Pole with Truffle WormTruffle Worm as Bait.

It must then be defeated within the Ocean.

The Fight[edit | edit source]

Duke Fishron has two phases, with one additional phase in Expert Mode.

First Phase[edit | edit source]

Duke Fishron will attack in three different ways during the first phase. The first thing Fishron will do is begin his charging flurry. He will charge towards the player exactly five times, with a short pause between each charge.

After each charge, he will execute one of the two Projectile attacks:

  • The First attack fires around 20 Detonating BubblesDetonating Bubbles;
  • The Second attack will create two small Bubbles on either side of where he is located, that will each generate a Sharknado. The Sharknadoes are tall and do damage, but they also fire SharkronsSharkrons towards the player.

Second Phase[edit | edit source]

When Duke falls below 25,000 health, he will stay stationary for a second, then his eyes will glow as he enters his second stage. His damage, and speed increase significantly, however his defense drops to 40.

His charge flurry only has 3 charges, but they are a bit faster than before. He still has two kinds of projectile attacks, but their patterns change:

  • The Detonating Bubble attack now causes him to move around in a circle, dropping the bubbles in a circle around his original location. This spreads out the bubbles, making it more difficult to hit them all.
  • His Sharknado attack upgrades to summon a Cthulhunado. He will fire a special bubble at you that is quite fast. When it hits you, it will spawn a Cthulhunado, a very tall tornado that does lots of damage and fires large quantities of Sharkrons. It also lasts much longer.

Note that, after the battle is over, care should still be taken. If he has launched a Cthulhunado, it may still fire Sharkrons. He may also have died within the Cthulhunado, so don't charge into it to collect his drops until it dissipates.

Duke Fishron's charging attack is his primary attack, and one of the most difficult to dodge.

The key to dodging it is to try to move perpendicularly to where he is aimed, right before he makes his charge. For example, if you are horizontal with him when he is about to charge, you need to quickly up (or down, if you're already flying). If he is right above/below you, then you need to quickly move left or right.

One important element of the Sharknado attack is that they will spawn in the location where Duke Fishron was when he fired the attack. And they will despawn almost exactly when he is ready to drop another pair of Sharknadoes.

As long as the player keeps in mind what attack Duke Fishron will do next, the player can put him in a position that makes it hard for the player to hit the Sharknadoes themselves. For example, during the charging flurry before the Sharknado attack, the player can move towards the edge of the screen, horizontally. That way, the player can run the other way knowing that they will not encounter Sharkrons from that direction. This also means that attacks towards Duke Fishron will also be towards the direction of incoming Sharkrons.

Also, note that Duke Fishron's first attack will always be bubbles.

Sharknadoes are quite tall; getting over them will require fast WingsWings or Cosmic Car KeyCosmic Car KeyDesktop VersionConsole Version.

The upgraded Sharknado attack is a bit more difficult to deal with. It's taller, and it does more damage than the original, plus it fires more Sharkrons.

However, there is one thing that makes it a bit easier to deal with: the Cthulhunado will spawn in the location where you were when the bubble hit you. This gives you a bit more control over where the tornado spawns, so you have more of a chance (if you are fast) to make sure it doesn't spawn in an inconvenient place. You likely do not have the speed to outrun the attack, but you can help get it out of the way.

The downside of course is that, once the bubble hits you, you need to quickly move, lest it spawn on top of you.

Another important factor to note is that by no means necessary should you attempt to cross a Cthulhunado. They deal about 100 damage, which will turn the fight in Duke Fishrons favor. Always use Wings to fly over them. Alternatively, use the Rod of Discord to teleport to the other side.

Expert Mode[edit | edit source]

When he drops below 9000 health, Duke Fishron will cloak himself in the background (which changes dramatically). He is hard to spot and he dashes at full speed. His contact damage is reduced, however it is easy to get hit by him multiple times in a row, as his high speed leave little time to react.

Play defensively, constantly zig-zagging up and down at 45 degree angles and using a homing weapon like the Possessed Hatchet or the Megashark with Chlorophyte Bullets so you can concentrate on moving while still dealing some damage. Make sure you keep changing direction as unpredictably as possible, and avoid settling into any repeating pattern of movement.

Star Veil can reduce the damage that he inflicts, and don't forget to Quick Buff your potions, especially the Regeneration Potion and Lifeforce Potion.

General Strategies[edit | edit source]

General Tips[edit | edit source]

This content is transcluded from Guide:Practical Tips.

  • Starting the battle as soon as the sun sets (at 7:30 p.m.) will provide the maximum amount of time to defeat nocturnal bosses.
  • Prepare your Boss-fighting arena with adequate lighting, CampfiresCampfires and Heart LanternsHeart Lanterns for health regeneration, and Stars in BottlesStars in Bottles for mana regeneration if you use magic.
  • Desktop VersionConsole Version SunflowersSunflowers provide the Happy! buff to players within a 50-tile radius, which grants a +10% movement speed bonus and 17% reduction in enemy spawn rate.
  • Always bring with you at least one stack of LesserLesser, NormalNormal, GreaterGreater, or Super Healing PotionsSuper Healing PotionsDesktop VersionConsole Version before doing anything: relying only on natural Health Regeneration is not a good idea.
  • It is suggested to build houses for the DryadDryad and the NurseNurse NPCs in your arena. The former casts the Dryad's BlessingDryad's BlessingDesktop VersionConsole Version buff, which increases your defense and provides you with a thorns-like effect, while the latter can heal and remove debuffs instantly, at the cost of some coinscoins.
  • Bosses are displayed on the Minimap: Follow the boss's icon to track it when you're struggling to find it. You can identify the boss icons by checking their respective wiki pages.
  • Once you have freed the MechanicMechanic in the Dungeon, you can use WireWire to enhance your arena with TrapsTraps and helpful HeartHeart and Star StatuesStar Statues. The former help to damage the enemies, though be careful to set them up correctly in order not to hurt yourself during the battle. The latter will spawn heart and star pickups, respectively. Connect these devices to timerstimers.
  • It may be useful to summon and kill the Eye of Cthulhu before summoning any harder boss in order to spawn an extra one-use pool of hearts.
  • Remember to use the Sharpening StationSharpening StationDesktop VersionConsole Version, Ammo BoxAmmo BoxDesktop VersionConsole VersionOld-gen console versionMobile Version, Crystal BallCrystal Ball, and Bewitching TableBewitching TableDesktop VersionConsole Version before you go to explore or battle Bosses / Invasions. These will give class-specific boosts that are useful to take. They respectively give SharpenedSharpenedDesktop VersionConsole Version, Ammo BoxAmmo BoxDesktop VersionConsole VersionOld-gen console versionMobile Version, ClairvoyanceClairvoyance, and BewitchedBewitchedDesktop VersionConsole Version.

Terrain Preparation[edit | edit source]

The Arena must be located in the Ocean, unless you're very confident to beat an enraged Fishron, which is usually not recommended.

  • Make an arena out of Asphalt BlocksAsphalt Blocks. It should stretch at least across the ocean. Make it 3-5 platforms high; each row should be at least 20 blocks away from each other. Leave a gap at either side for maneuver however.
  • The Arena must be very tall: the Tornadoes are very tall, and thus, it requires significant amount of flight time to go to the other side of it.

Gearing up[edit | edit source]

It's highly recommended to defeat Golem first if you haven't done already, as these tips will take that into account. If you have no idea how to reach Golem, check this Walkthrough section.

By this point, you should have 500 Health. If not, it's recommended to do so. You might need to beat at least one of the Mechanical Bosses in order to spawn Life FruitsLife Fruits.

Armor[edit | edit source]

  • For Melee characters, the Beetle armor with Scale Mail is recommended as it gives decent defense, while also paired with attack buffs, which stacks as the player damages the Boss or the Sharknados.
    • If the player desires high defense, use Beetle armor with Shell instead.
  • For Ranged characters, the Shroomite armor or Titan armorConsole VersionOld-gen console versionMobile Version3DS version is highly recommended.
  • For Magic characters, Spectre armor or Spectral armorConsole VersionOld-gen console versionMobile Version3DS version is highly recommended.
    • For Spectre armor, the set with the Spectre Hood helps with health drain, while the Spectre Mask boosts damage.
  • For Summoners, having both the Spooky and the Tiki armor is highly recommended, using the former to increase minion's DPS, and the latter for the additional minion.

Weapons[edit | edit source]

For Melee users:

  • Vampire KnivesVampire Knives are very useful for stealing life combined with decent damage. Also, the life steal works better on his second phase.
  • Flask of IchorFlask of Ichor is useful to significantly lower Duke Fishron's defense.
  • The Influx WaverInflux WaverDesktop VersionConsole Version is a very powerful choice if you have defeated the Martian Madness already.
  • The Terra BladeTerra Blade also performs well, though not as well as the Influx Waver.
    • The Horseman's BladeThe Horseman's Blade is also a good choice as its ability to spawn pumpkins works on the bubbles. It may not be the best for the whole fight, but it is definitely one of the best against the Bubbles.
  • Constantly throwing the Paladin's HammerPaladin's Hammer or Possessed HatchetPossessed Hatchet while flying around can defeat him quickly.
  • The Eye of CthulhuThe Eye of CthulhuDesktop VersionConsole Version is the best Yo-yo that can be used at this point.
  • When Duke Fishron shoots Bubbles, use Death SickleDeath Sickle to clear them.
  • The Scourge of the CorruptorScourge of the Corruptor is somewhat low in damage, but it makes up for this by homing in on Fishron during the fight. Paired with a flask, the player can focus more on dodging Fishron while the tiny eaters attack and do damage over time. Accumulating a swarm of them before Phase 3 in Expert mode helps do burst damage against Fishron when he's visible.

For Ranged users:

For Magic users:

  • The RazorpineRazorpine is a very strong due to its excellent DPS, alhough it requires you to get closer than with other weapons.
  • The Golden ShowerGolden Shower spell is helpful as it reduces his defense.
  • The Inferno ForkInferno Fork does a lot of damage and is also a good choice.
  • The Blizzard StaffBlizzard Staff is very good for attacking while he is stationary.
  • The Laser Machine Gun can be used if the player has already defeated the Martian Madness.
  • The Magnet Sphere can deal lots of damage and only needs to be casted once in a while.

For Summoners:

  • Due to the ability to always have at least one Minion, or two with access to a Bewitching Table, summoning a minion prior to Duke Fishron may be helpful. However, due to his significant defense, weaker minions should be avoided; and due to his extreme speed, slower minions or those who use slower projectiles will be similarly ineffective. The Optic Staff, Xeno Staff, and especially the Deadly Sphere Staff can be quite helpful.
  • Maximize summon damage with buffs from food and potions, armor, and accessories when summoning minions, as the minions retain the increased damage even if the equipment is removed, until the minions are unsummoned or replaced.

Accessories[edit | edit source]

  • Wings are a must have for the fight. The Frog Leg can make them significantly faster, making it easier to get over the Cthulhunadoes and dodging his attacks while flying.
  • The Master Ninja Gear, Shield of Cthulhu, or Tabi are incredibly useful for doging its attacks with their dashing capabilities.
  • Accesories that increase damage are a must have for ending the battle sooner. The best choices include the Celestial Shell or Stone, Destroyer Emblem, Mechanical Glove, and Sniper Scope.
  • Cross Necklace or Star Veil is recommended as the boss speed might cause several heavy hits on characters should the boss catch the player. The Sharknados may also flank the player hitting them consecutively especially on Duke Fishron's second phase.
  • Characters with Spectre Armor should consider using Magic Cuffs or Celestial Cuffs, as the damage dealt by Duke Fishron's attacks will often times completely restore their MP, allowing them to attack constantly while restoring HP. Care should be taken as the boss' high attack can make quick work of reckless players.
  • If you are using The Eye of Cthulhu or another yoyo, use a Yoyo Bag.
  • Charm of Myths will both allow for increased regen and reduced time for the Potion Sickness debuff.
  • The Cosmic Car KeyCosmic Car KeyDesktop VersionConsole Version mount is a good replacement for Wings and can be better as it provides infinite air time. Unlike Wings however, it's much slower and can't be used with a dash.

Potions and Buffs[edit | edit source]

As with any other Hardmode boss, it would be useful to prepare the following potions:

More In-Depth Strategies[edit | edit source]

Minecart Strategy[edit | edit source]

This strategy differs from others in that it doesn't use skybridge, replacing it with looped minecart track above the ocean, so the player won't have to deal with his enraged behavior. It does, however, need some more work than other ones, especially when building arena.

Materials[edit | edit source]

  • 600-1200 normal minecart tracks for building loop + 2 booster tracks
  • Any kind of hammer

Arena Preparation[edit | edit source]

The essence is to make looped minecart track approx. 60 tiles above Ocean itself. It should consist of at least 600 tiles; while shape is pretty loose, it should have at least two places in which player drastically changes altitude, as well as at least 100 tiles long flats.

One should also make a "Starter" - a short molo with boosters, from which player will summon Duke Fishron and quickly escape to the loop.

It should be noted also that arena shouldn't exceed Ocean biome.

Execution[edit | edit source]

When everything's done, player should sit in a minecart on "Starter" and summon the Fishron. As soon as it's done, one should quickly go to loop (boosters will help). At this point, everything that remains is to shoot Fishron while maintaining speed on track, healing a/o replenishing mana when needed. Some tips:

  • Use a homing weapon, especially if your arena is pretty large. Fishron will spend most time off-screen, and high speed will often change directions you're facing.
  • Though stock minecart shouldn't be used, Mechanical Cart is not a good choice. Even though with it provides defense bonus, as well as speed to avoid Fishron's charges, it will probably outrun him so much that he will despawn, which is possible on larger arenas. Higher speed means also that you will more often run into Sharknados.
  • Try to make arena consisting of approx. 800 tiles, but don't make it horizontally-long. If you do so, Fishron will frequently run into you, and Cthulunados in his second stage will quickly kill you as there won't be any way to dodge them.

"Meat Shield" strategy[edit | edit source]

If you have 2 or more players, consider having a "Meat Shield" (A player with Beetle armor w/ Shell and Warding accessories) to focus on dodging and keeping him away. The other player will have Spectre armor w/ Hood, a Laser Machinegun, a Mana Flower and 1-2 stacks of Greater Mana Potions. The defensive player will focus solely on dodging yet staying close to the offensive player, so that the Spectre Hood will heal the defensive player whilst draining Duke Fishron's health

Spike Strategy[edit | edit source]

You will need a minimum of Hallowed armor with vampire knives no matter your class. You will also need a Cross Necklace or Star Veil. Accessories such as the Black Belt, Celestial Stone, or any emblem will help GREATLY. To top it off you will need some Spikes from the skeleton dungeon. Just sit on the spikes, shooting him with your vampire knives. This works because when he attacks you, your cross necklace or star veil was working from the spikes, which caused only one damage which saves you TONS of health. If you are confident and have killed him before, use the Flairon to kill him in under a minute. This strategy doesn't work in 1.3 or higher.

Enraged Anti-Gravity Hook Strategy[edit | edit source]

When Enraged, Duke Fishron is much faster and does much more damage. But with this stategy, this strength can be turned into a weakness. What you must do is get an Anti-Gravity Hook and place one or more platforms in the air. After fishron becomes enraged, you use your anti-gravity hook in the platform and start using it to spin in a circle. This makes it possible to dodge all attacks. Keep in mind that this strategy only works with enraged duke fishron, because in his regular behavior he will use sharknados, cthulhunados, etc., and in his enraged behavior he will do nothing but attempt to ram you. Then you use the hook on the platform, start spinning and dodge his charges. It can be difficult to hit fishron with this strategy, so it's recommended to use a rapid gun with chlorophyte bullets.

Pre-Plantera Strategy[edit | edit source]

It is possible, although very difficult, to defeat Duke Fishron before fighting Plantera; either for a challenge or for a way to power-up early.

The Gear[edit | edit source]

The recommended strategy for this fight so early in the game is to use the Megashark with Chlorophyte Bullets, as it has a high damage output and the homing properties of the bullets will make aiming easier as you are moving around the arena. Chlorophyte ranged armor will provide the most defense at this point as well as a good damage boost and some additional damage output from the set bonus. For accessories, the Star Veil/Cross Necklace, and Charm of Myths are recommended. If you do not have enough pink slime to build a large arena, you will need Wings or a Horseshoe as well. The Flesh Knuckles and/or Worm Scarf will help reduce the damage you are taking and Ranger/Avenger Emblems to boost your damage output. A Moon Stone and/or Moon Charm can also help if you fight him during the night, providing defense and regeneration (and damage with the Stone). Having your accessories reforged to Menacing will help with dealing more damage to end the fight faster, but you will need to focus more on dodging Duke Fishron's attacks. Reforging to Warding instead will increase your survivability, but it will take a longer time and more ammunition to beat him.

For potions, a Gravitation potion is critical for this strategy, alternatively you may try with the Pigron mount. Inferno is helpful for killing his bubble projectiles. Lifeforce, Ironskin, Endurance, Wrath/Rage, Regeneration and any food for the Well Fed buff will make the fight easier. Also include a Heartreach potion if you plan to build heart generators as part of your arena. A Featherfall potion is NOT recommended, as the slower falling speed will make you more vulnerable to Fishron's charging attacks. Make sure to bring plenty of Greater Healing Potions from the biome mimics.

The Arena[edit | edit source]

Build a large box above ocean with which to fight Duke Fishron in; it should be at least 150-200 blocks tall and wide. It is not recommended to build up to space, as the slow fall effect will leave you more vulnerable to attacks. Using Pink Slime Blocks for the floor and ceiling will negate fall damage will allow you to free up an accessory slot as you will not require wings/horseshoes. Build side-walls on your arena to prevent falling out, and possibly leaving the Ocean as that will put Fishron into an enraged state. You will need a small opening from which to enter the arena and to fish from in order to summon him. Sunflowers, Campfires and Heart lanterns situated on the top and bottom of the arena will aid you with speed and regen. If you plan to build heart generators, it is recommended you build them on the outside edges of your arena. Otherwise, you could take too much damage if you land on or get stuck on them. They can also provide spots for Sharknados to land. Any heart generators built under your arena you will likely need a Heartreach potion to make use of.

As soon as you cast your line, move into the arena. As soon as you summon him, activate your buffs and reverse gravity. Then begin shooting in his general direction, your bullets will find their way to him. Each time you reach the top/bottom of your arena, reverse gravity so that you stay in a continuous fall. You will want to reverse sooner if you see that you may land on a tornado. Continue shooting and heal as often as possible. When he hits his second form, you will need to watch for the larger sharknados, as they will be able to form in air, but otherwise the strategy will not change. When he reaches his third form on expert, you will need to remember that he changes sides each time he reappears to charge at you; just keep shooting and you will kill the Duke.