Go-Shintai of Lost Wisdom (Kamigawa: Neon Dynasty)

Flying At the beginning of your end step, you may pay {1}. When you do, target player mills X cards, where X is the number of Shrines you control. (To mill a card, a player puts the top card of their library into their graveyard.)

NM - $1.00
LP - $1.00
MP - $1.00
HP - $0.50
DMG - $0.50