Swarm Jaunt

When a creature you can see attacks or targets you, dissolve briefly into a rushing swarm and reform in an unoccupied space within range that your swarm could physically reach. The triggering attack has disadvantage, and if it misses, you leave a cloud of pests in your old space until your next turn.

This power has its own stable page so it can be linked from any character, item, location, story post, bargain, curse, or future reward.