Crystal of Acidic Elemental Essence
From Drunkapedia
Obtained: Random Loot Trophy off of Caustics (good way to find them is to kill a Coral Golem Viceroy which has numerous miasma minions that all die when it does)
Uses:
Turn into Zahir of Stonehold for a 500,000 xp
(Zahir also gives the Elemental Eradicator kill task)
