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Eternia Crystal

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Desktop version Desktop-Only Content: This information applies only to the Desktop version of Terraria.
Eternia Crystal
  • Eternia Crystal item sprite
Stack digit 9.pngStack digit 9.png
Statistics
TypeSummoning
TooltipPlace in the Eternia Crystal Stand to summon Etheria's portals
RarityRarity Level: 3
Buy / SellT1: 25 Silver Coin / 5 Silver Coin
T2: 1 Gold Coin / 20 Silver Coin
T3: 4 Gold Coin / 5 Silver Coin
Not to be confused with Eternia Crystal (NPC).

Eternia Crystals are purchased from the Tavernkeep for 25 Silver Coin (pre-Mechanical Bosses), 1 Gold Coin (post-Mechanical Bosses) or 4 Gold Coin (post-Golem). The Discount Card and Greedy Ring have no effect on its price. Because of the price increase, you may wish to stock up before defeating the mechanical bosses. When used in the Eternia Crystal Stand, the Old One's Army event begins.

The Event lasts for varying lengths depending on game progress:

The waves begin easy and get progressively more difficult until the final wave (wave 7 post and pre-golem) there is a boss as well as the invasion creatures. Defeating the boss finishes the wave, however.

History[edit | edit source]