Goldhound

A mana dork wearing an aggressive body, which is a stranger pairing than it first sounds. Most one-drops that make mana ask you to leave them alone and tap them; this one is armed for combat before it ever cashes out. First strike and menace mean a 1/1 that demands two blockers to stop, and against small toughness it can pick off a blocker with the first-strike point while the menace tax makes chump-blocking it expensive. That combat clock is the point. The sacrifice-for-any-color line reframes the creature as a ritual you spend on your own schedule rather than a fixture you protect: attack while the coast is clear, and when the board finally turns against you, convert it into the mana that casts your next threat. The type line makes the joke literal, since it is a Treasure that fights, and like any Treasure the redemption is yours to time whenever the mana matters more than the swing. The color-fixing is the reason it reads as more than a red one-drop that pokes: a mono-red deck reaching for a second color gets an attacker early and a fixer late from the same card, and that fixing never rots in play because it is stapled to something that already wants to be swinging. The design tension is small but real: every point of damage you squeeze out of it is a point you are betting you will not need that mana this turn.