Collision (+2 bonus)

The material below is Open Game Content by a 3PP Source

Collision: Collision weapons psionically increase their own mass at the end point of each swing or shot. Such weapons deal an extra 5 points of damage on each successful strike, in addition to the weapon’s enhancement bonus. Bows, crossbows, and slings bestow the extra damage upon their ammunition.

Aura Moderate metacreativity; ML 10th; Craft Magic Arms and Armor, matter manipulation; Price +2 bonus.