Shadowy rage: Everytime you bash your keyboard or screen because you have been, disoriented, stunned, incapacitated, silenced, interrupted, slowed, rooted or snared while in Shadowform, you gain 30 shadowy rage, the more shadowy rage you have, the lower the mana cost on your shadowform, power word fortitude, divine spirit or greater heal(<-wat?).
This effect may only be consumed in Shadowform.
0-20 rage: -20% mana cost.
20-40 rage: -25% cost.
40-60 rage: -50% cost(lol inconsistancy)
60-100 rage: -75% cost(sorry, we got bored)