Archfiend of Depravity
A recurring sweeper that leaves the opponent their two best creatures, with a 5/4 flying body riding along to close the game. The design lives in the timing: the trigger fires on each opponent's end step, after they have committed their creatures for the turn, and it forces a sacrifice rather than dealing damage or destruction, which sidesteps indestructibility, regeneration, and most forms of protection. Crucially, this is not a tax that only applies to future development. A wide board already on the table is decimated the moment the next end step arrives, dropping the opponent from a sprawling position down to two creatures in one go, then capping every rebuild at two thereafter. That makes it a strangling answer to go-wide strategies specifically: token decks simply cannot function, and a flooded board can never stabilize because anything past the second creature dies on a clock the opponent cannot escape. The trade for all this is that it reads as a fair card. Against a deck content to win with two large threats, the trigger does nothing at all, and a single removal spell ends the whole lock. It punishes overextension and quantity, not power, which is a narrower and more interesting axis than a flat board wipe occupies: a black demon that asks the opponent to win small and clean, then beats down with the flier while they try.
