Infinat turns

Enchant creature Enchanted creature can't be blocked and has shroud. (It can't be the target of spells or abilities.)

Champion a Merfolk (When this enters, sacrifice it unless you exile another Merfolk you control. When this leaves the battlefield, that card returns to the battlefield.) Whenever this creature deals combat damage to a player, you may sacrifice a Merfolk. If you do, take an extra turn after this one.

Whenever this creature becomes tapped, you may create a 1/1 blue Merfolk Wizard creature token.