How many vouchers are needed for an Aniipod Ultra?

You complete this trade at the item exchange using Annipod Ultra vouchers. While lower-tier Anipods can be converted into higher-tier pods at a merchant at a two-to-one exchange ratio, turning in these vouchers gives you direct access to the Ultra tier without consuming your standard stock.

Saving these pods is intended for Alpha encounters. Alpha Aniimo bosses can be battled and captured upon defeat, but standard catch rates on them are low. An Alpha Aniimo such as Stellarys can be caught with other pod models, but not reliably. Defeating the boss and throwing an Aniipod Ultra removes that risk by securing a guaranteed 100% capture.