Scourge of the Nobilis

This Aura reads its host before it pays out: a red creature gets a firebreathing pump, a white one gets lifelink, and a creature wearing both colors collects both clauses at once, stacking +1/+1 twice and carrying repeatable attack pumping alongside life gain on a single body. That conditional structure is the design: a buff that scales with how committed to red and white the deck actually is, rewarding the gold and two-colored creatures of its era while still doing half its job for a mono-red or mono-white host. On a red body, the firebreathing wants an open board and leftover mana to dump into the attack step; on a white body, the lifelink bends an aggressive curve toward grinding out attrition. The ceiling, a creature that swings, pumps, and gains life all at once, is the obvious draw, but it depends on a host already standing in both colors, which is exactly the board state most beatdown decks have to be built deliberately to reach. That gating is why the card asks to be a payoff in a deck constructed around it rather than a generic combat enhancer slotted in for tempo. It sits among the color-reading effects that pose the same question a charm poses (what colors are you really playing?) and answer it permanently, on the battlefield, instead of once at instant speed.