Players must note that even after completing a Familiar's unlock conditions, it may not immediately be available for sale at the Tavernkeep's shop. The chance of an unlocked pet being available for sale at the shop is dependent on its rarity.
The Monk Animus has a level requirement of 60. However, this is increased to level 74 for item's of Mythical Quality.
As of PC patch 7.16c, Animi are now 7x more effective on Nightmare Difficulty.
Rewarded by completing the Death From Above challenge as an Apprentice on at least Medium Difficulty.
Other animi are unlocked by defeating the Ancient Dragon in The Summit on at least Insane Difficulty while playing other hero classes. Note that these Familiars can only be equipped by their corresponding hero class (e.g. an Apprentice or Adept can only equip the Apprentice Animus).