Brushwagg

A creature with its offense baked in backwards: as long as nobody fights it, the body reads as a respectable 3/2 beater, but the moment combat actually happens, the toughness inflates and the power craters. The design joke is that this thing is a terror in the abstract and a noodle in practice, swinging to a 1/4 the instant it meets resistance. That makes it a wall that punishes attackers (a 1/4 survives most early aggression) and an attacker that gets stonewalled by anything (it can no longer push damage past a chump once the modifier fires). The card became a long-running in-joke in Magic's culture precisely because of this self-defeating profile, and Wizards has leaned into it: the Brushwagg creature type has been printed and reprinted as a recurring novelty, and the original art's bug-eyed shrub is the reason anyone remembers a vanilla-adjacent green three-drop from the mid-nineties at all. The timing is what keeps it worth a second look: the -2/+2 lands until end of turn the instant blocks are declared, so the body you committed to combat is not the body that fights. That friction is the whole character of the card, a self-sabotaging combat trigger almost no other creature of its era built its identity around.