Carnage Gladiator

The threat that punishes the act of defending itself. Most aggressive creatures tax the defender by demanding a block they cannot survive; this one inverts the math by draining a life the moment any creature, on either side, declares itself a blocker. That breadth is the design wrinkle: the trigger does not care who attacks or what gets blocked, so a stalled board where both players are throwing chump blockers each turn becomes a slow bleed in favor of whoever cares less about defending. The card rewards a deck built to swarm and trade, turning the defender's only sane play (gumming up the ground) into a clock against them. The 4/2 body is glassy on purpose: two toughness folds to almost any combat, which is where the regeneration ability earns its keep, letting it survive a chump and reset for another swing. The pairing is deliberate. A creature that profits from blocks needs to keep attacking into them, and regeneration is the insurance that keeps the attack live turn after turn. This is the kind of black-red aggressive midrange body that asks the opponent to spend resources just to stand still: less a finisher than an accelerant on a board that has already turned into a grind.