Rabid Rats

An offensive tool disguised as a 1/1 chump, and the disguise is the design. The tap ability targets a blocking creature, which means the rat does its work only after blocks are declared: an attacker swings, the defender commits a creature to defense, and the rat shrinks that blocker by -1/-1 to push damage through or kill a fragile creature outright. The constraint that defines it is "blocking," not just "creature." You cannot tap it before combat to set up a fight, and you cannot clear a blocker preemptively to open a lane. The window opens only after the opponent has committed to defense, which makes this a tempo tool leashed to the attack step rather than a free-floating removal effect, and it asks you to be the one applying pressure. As a repeatable shrink that untaps each turn, it accumulates value across a long game the way a slow grinder should, but the timing leash keeps it honest: the rat is useless against a passive opponent and only earns its keep when you are dictating combat. The 1/1 body is incidental; the tap is the card. It reflects an older design instinct built around combat math and the assumption that the player holding it is the aggressor, punishing the defender for the act of blocking rather than ever stopping an attack of its own.