Ripple fires on special cast. On a piece that carries it it reads: Casting your Special sends a shockwave through enemies within 2.5 u for {value}% of your Power.

Word for word it is Casting your Special sends a shockwave through enemies within 2.5 u for {value}% of your Power, and the number in it grows with the gear: 70 to start, 3.5 more for every item level.

0 bases carry it.