Wisp Upgrade Stone

 is used to upgrade the rarity of Wisp Pet. It has 3 variants:, and. variant upgrades to,  variant upgrades  to , and  variant upgrades  to. Wisp Pet are unable to be upgraded at Kat.

Usage
Right click a Wisp Pet while it is equipped (the floating head) with the Wisp Upgrade Stone in the hand to upgrade it to the rarity that the stone is. The stone must be the tier directly above the current pet's rarity. Note that a recombobulated stone will not be able to upgrade a Wisp to its upgraded rarity, only its base rarity. The stone will be consumed on use.