Deus of Calamity
Five hybrid pips give this 6/6 trampler an unusual castability: it lands just as cleanly in a mono-red or mono-green shell as in a Gruul one, never asking for two colors at once. The land-destruction clause is where the teeth are, and the threshold is calibrated with intent. Six is exactly the body's unblocked damage, so a clean, unimpeded swing strips a land and nothing less will do. That makes blocking the live answer in both directions: any creature, even a one-toughness chump, eats a point and drops the damage through to five, below the threshold, so the destruction simply does not fire. Trample is what keeps that from being a permanent out; the blocker absorbs the trigger this turn, but the attacker still gets through, and the moment the body grows or the chumps run out, the mana base starts coming apart one swing at a time. The wording matters in both directions. It cares only about damage this creature itself deals, not where it comes from: a burn spell from your hand to the face does nothing for the total, but a spell that routes damage through this creature counts, as does anything that swells a single instance of its damage. That is why doubling its power or pumping it midcombat turns a chump-blocked stall into a land kill. This is a beater whose secondary clause taxes the player without an answer: the life you lose is the cheap part, and the resources you lose next are the bill.

