Gnat Alley Creeper

Evasion built for the ground war. The 3/1 body is the giveaway: this is a creature meant to swing every turn and trade up only if the blocker is willing to die for it, and the unblockability against flyers patches the one gap an aggressive red two-power-plus creature can't normally cover. Ground pounders die to chumps and stall behind a wall of small flyers; this one ignores the flyers entirely while still being a normal body to a ground blocker. It's a narrow keyword, almost a hoser dressed as an aggro card: in a world without flying defenders it reads as vanilla, but against decks leaning on small flying blockers to buy time, those defenders simply don't get to participate. The fragile toughness keeps the cost honest, since one point of damage or a single profitable block ends it, but as a recurring three-point clock that the obvious blockers can't touch, it does the job it was drawn for.