- Unlocked at Siphoning rank 42.
- Update 6: This ability now scales off weapon damage and stamina instead of magicka and spell damage. The damage has also been increased by 10%.
- Update 1: The healing this ability does now correctly increases by 20% for each target hit.
- Update 6: This ability now grants you the Major Spell Power buff.
- Update 8: Fixed an issue where this ability's heal effect could be dodged.
- Update 1: Fixed an issue where this ability wasn't granting the initial Weapon Damage bonus you should receive when no target is hit.
- Update 6: The damage caused by Drain Power no longer scales with the number of targets hit. Instead, you will receive a Major Brutality buff when damaging at least one target.
- Update 7: Increased the damage of this ability by approximately 20%.