Magnus the Red

Two engines pointed at each other, and building this deck is trickier than the text reads because the priming runs only one way. Unearthly Power discounts your instants and sorceries by one for each creature token you control, so it wants a wide board of little bodies feeding a spell chain. Blade of Magnus wants the opposite input: it manufactures 3/3 Spawn tokens, but only by connecting in combat, which asks a 4/5 flier to get through and stay alive. The cost reduction rewards you for already having tokens, while the token generation rewards you for attacking, so you bootstrap the discount elsewhere (any go-wide token producer will do), and once the count climbs, the spellslinger half accelerates fast, because the reduction stacks per token rather than capping. The ceiling is real: a hand full of instants and sorceries can drop toward free with enough bodies on the board, and the flier keeps padding that count as it hits. The Spawn tokens are worth noting for what they are not: 3/3s with no evasion and no protection, so they swell the discount and swing as a team, but they do not solve the connectivity problem Blade of Magnus depends on. What the card resolves is an old question about how to make tokens and burn spells want the same deck, answered in Izzet colors with a demon large enough to fly over the board it built.