The Wither Beast is an enemy from the Old One's Army event. When within 25 tiles of a player, it will surround itself with a 50×50-tiles aura of crystals, visually similar to the Dryad's Blessing, inflicting the Withered Armor debuff, which halves defense. The debuff will dissipate immediately after leaving the aura zone. Eventually, the Wither Beast will enter a state where it will remain stationary until it is killed. It will also regenerate its health when damaged, healing at a rate of 25 / 50 / 63 (in Tier 2) or 70 / 140 / 178 (in Tier 3) health every second.
Along with the Etherian Lightning Bug, it is one of only two enemies in the event that require the usual 50 kills to receive the respective Banner.
- The Bestiary entry for the Wither Beast: "Wither beasts emit a defense-sapping aura from the crystals on their back. While rooted in place, they heal rapidly."
- ↑ 1.0 1.1 1.2 Information taken from the Desktop 22.214.171.124 source code, method
- ↑ Information taken from the Desktop 126.96.36.199 source code, method