Talk:Unicorn/@comment-78.57.167.13-20120630100550/@comment-25211243-20150709000728

Actually purification powder doesn't remove Hallow, only Corruption/Crimson. Use a clentaminator from a Steampunker in order to get both biomes. Oh and you have to be in hardmode (either hack or defeat the WoF boss) in order to get the hallow.

This is a very late reply, sorry!