Cheesing and Grinding Ouroboros in Inscryption
As the Ouroboros can be powered up indefinitely, a good strategy when starting out is to use it with cards bearing the Many Lives or Unkillable Sigil (for the two blood sacrifice requirement) to play and sacrifice it multiple times in as few turns as possible. Doing so can raise its stats to whatever values the player wishes, making it an exceptionally powerful card and providing an easy means of winning fights and gaining Teeth through overkill damage. Having Ouroboros in the deck while entering the Ring trail will cause the trial to automatically be passed.
"The eternal serpent. Death strengthens it forever."
Ouroboros is a rare Reptile Beast card in Act I and Act II of Inscryption.
Every time Ouroboros dies, it returns to your hand with +1 Power and +1 Health. It will keep that stat boost throughout the entire game, even across chapters.
Any death - through any means - of any Ouroboros card will increase the strength of all existing and future copies of the Ouroboros, including Ourobot.
Ouroboros also has an elusive property in that only one is allowed to be added to the deck. Leshy will not offer Ouroboros more than once in a run and Goobert will not copy it.