Wererat: Plague Skitter

Move up to your speed without provoking opportunity attacks, passing through hostile spaces if they are your size or larger. One creature you pass within reach must make a CON save, taking 3d8 piercing or poison damage on a failed save, or half on a success.

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