Call Beast
From Final Fantasy Wiki
Call Beast is an ability available to Beastmasters in Final Fantasy XI starting at level 23. That is an odd level for any ability to become available, since almost all other abilities in the game come at levels divisible by 5. This is the first level, though, that a beastmaster can equip a jug as a ranged slot ammunition type. Jugs are made or purchased. A beastmaster must equip one before using call beast or else it will not work and the only thing he will get is an error message.
There are only three versions available at level 23, but the number of jugs rapidly increases as the beastmaster levels into the 30s. When call beast is used, it will summon a beast familiar. The type is determined by the jug that is equipped. Jugs come in stacks up to 12 in number, and each time call beast is used, one is expended.
