Ichthyoid Ritual

At the beginning of your upkeep, each player
creates a 1/1 blue fish creature token and loses
life equal to the number of fish they control.

At the beginning of your end step you may
pay {10}{b}{b}{b} and sacrifice 13 fish. If you do, transform Ichthyoid Ritual (Transforms into Jothon, Bringer of the Promise)