Stromgald Crusader

Protection from white is the load-bearing keyword, and the two activated lines exist to cash it in. Against white-heavy defensive fields, a creature that white removal cannot target and white creatures cannot block profitably is already a clock: the flying activation sails it over the ground stall those decks build, and the firebreathing turns a flooded mana base into reach. Protection has hard limits worth naming, since it is easy to overread: it stops targeted white removal, white damage, white blockers, and white auras, but it does nothing against global sweepers like Wrath of God, which neither target nor deal damage. So this is a beater that picks the matchup it wins and the way it wins it, not one that walks through every white answer. The coherence is that all three lines point the same direction: the protection chooses the field, the flying chooses the angle of attack, the pump chooses the turn it closes. A 2/1 for double-black is a fragile body in a vacuum, but the activations let one creature scale into the late game on otherwise dead lands instead of asking for a second threat. It reads as a hatebear that doubles as an evasive mana sink, a combination mono-black aggro has rarely had in a single slot. The price is color commitment: the double-black cost and per-activation black mean it only does this work in a deck floating black freely, which is exactly the deck that wanted protection from white to begin with.