User blog comment:GutsyTick/CC: Viden, the Seeress of Death/@comment-26313342-20150824055017/@comment-26044269-20150825104044

Paradigm Shift is more of a mechanism which was added to increase the responses in which Viden's enemies should have to her in her different states; basically to increase both the amount and depth of the interactions Viden and her enemies have with each other. Hence I don't think a mana cost is really necessary.