Kuudra Keys

 are, or  items that can be purchased from the Mage or Barbarian Emmissary. It allows players to unlock the reward chest in the Kuudra fight of their respective tier.

Obtaining
 can be purchased from the Mage & Barbarian Emissary or dropped from and  on Crimson Isle. Higher-tier keys are able to be crafted from lower-tier keys. ', ' and  are automatically upon obtaining.