Mindshrieker

The activated ability turns mill into a clock, and the gamble is the whole appeal: every pump asks a player to feed a library into the air and hope something heavy comes down. A milled land gives you nothing; a fattie or a high-cost spell can swing this from a 1/1 flier into a real threat in a single click. That variance cuts both ways, since you can aim the ability at yourself for a controlled grind or at an opponent and bank on their curve to inflate the swing. The size is generated and temporary, so the body resets every turn and the card never becomes a permanent fixture: it is a pay-as-you-go attacker that rebuilds its own damage from whatever the top of a deck happens to hold. That self-mill option is the design wrinkle worth dwelling on. Pointing the ability at your own library makes a creature whose growth and a graveyard-fueled strategy run on the same lever, so a deck that wants cards in the bin already and a creature that wants to dig there share a button. The flying matters more than the printed 1/1 suggests; whatever damage the ability conjures lands in the air, where it is hardest to chump and easiest to convert into a tempo clock. It is a deliberately swingy piece of mill-as-aggression, built for players willing to let the library decide how hard a turn hits.