A Unicorn Horn "This magical horn belonged to a unicorn. Its powerful healing powers will help you a lot. You heard that this unicorn was named Charlie."
A Unicorn horn gives you a constant healing factor. It stacks with Pink enchanted gloves.
It is in the treasure chest in the Xinopherydon's dungeon all the way on the left in the Desert Fortress.
If you hack the game, its effects will be reversed.