Garrulous Sycophant

A 1/4 body for is the tell here: this is a defensive shell built around an end step no creature normally has reason to defend. The monarch mechanic hands the active player a card-draw subscription that any opponent can seize by dealing combat damage, so the format-defining tension of the keyword is the fight to hold the crown. This card pays you for holding it: each end step you spend as monarch becomes a small drain that nudges every opponent down a life and you up one. The timing is what makes the wall pull its weight. The trigger checks on your own end step, after your combat and before opponents get their swings at you, so the turn you seize the crown you bank the drain immediately, then sit behind four toughness daring the table to take it back. That four toughness is the whole job: it absorbs the early aggressors who would otherwise crack through and steal the monarchy, and the same body that survives is the body that fires the trigger. The engine is mute the moment the crown changes hands, which is the honest price of an effect that compounds across a multiplayer table. As monarch support it is unusually single-minded: a wall whose only ambition is to keep you wearing the crown one more end step, bleeding the table a point at a time while you do.