Jawbone Skulkin

One of a cycle of artifact Scarecrows built to bend a single color's combat math, this one rents haste to red creatures for two mana a turn. The fixed-color clause narrows the design on purpose: it only ever helps a red board, so the card points squarely at decks already committed to that color rather than at any shell looking to splash a generic haste enabler. The activation costs more than the body, which tells you what the card actually is: a repeatable utility engine, not a 1/1 you cast for its stats. Because the Scarecrow itself is colorless, it slots into a red deck cleanly without demanding a red source of its own, while still feeding haste only to the red creatures that deck is built around. The grant resolves at instant speed, so the engine can fire on the same turn a threat lands, springing an attacker that would otherwise sit out a turn before swinging. The effect is narrow and the rate unspectacular, which places it exactly in the role it was made for: a cheap, repeatable speed valve for a red aggro plan that wants every freshly cast threat turning sideways the moment it touches the battlefield.