Bringer of the Black Dawn

The upkeep ability is the reason this thing exists: pay two life, tutor any card, and put it on top of your library. A repeatable, unconditional Vampiric Tutor stapled to a 5/5 trampler, free every turn it survives. The catch is the body that carries it costs nine mana, and the WUBRG alternative cost asks for all five colors at once instead. That dual price is the whole bargain: the Bringers were a cycle built on the premise that a five-color deck could field these for far less than the printed number, so the engine is gated behind a manabase willing to produce one of every color rather than behind a high mono-color cost. What makes the black Bringer the standout of the five is that its payoff is the most format-agnostic. The others draw cards, reanimate, or burn; this one hands you the exact card you need, every upkeep, and a single tutor for a combo piece can end a game by itself. The two-life cost is the only restraint, and against any deck that cannot pressure your life total it is effectively free. It is a finisher and a search engine in one slot, and the asymmetry between its real-color cost and its rainbow discount is the design tension every Bringer was built around: enormous on its own terms, but only ever cheap if you build the mana to deserve it.