Emperor Mihail II 73 (Commander: Dominaria United)

You may look at the top card of your library any time. You may cast Merfolk spells from the top of your library. Whenever you cast a Merfolk spell, you may pay {1}. If you do, create a 1/1 blue Merfolk creature token.

NM - $2.80
LP - $2.30
MP - $1.70
HP - $1.50
DMG - $1.50