Kamaitachi

Three sickle-weasel spirits ride one mountain whirlwind. The first knocks a traveler down, the second opens a bloodless cut and the third seals it before pain arrives.

Three-Part Gale: every creature in a 30 ft line makes a Quick save. A failed save knocks the creature prone and deals 3d6 slashing damage; a successful save deals half damage without knocking it prone. The wounds do not bleed until the following round.

Bound as Three: a spell or effect that holds, stuns or traps one kamaitachi affects all three. If the whirlwind is broken by enclosing it, soaking the ground or filling the air with heavy debris, their AC falls by 3 for 2 rounds.