Is dark exchange viable for a magicka sorc in pvp? They fixed the animation so you can move more freely. But i feel like the drain on your stam would het you killed since you have low regen.
When I play Magicka Sorc, I use the one that cost Magicka, which is very cheap and lets you block and roll dodge a LOT more because of the Stamina return. If your Magicka regen is so low that you need to refill it with Dark Exchange, you've got other problems.