Vengeful Shade

Briefly become immune to attacks while damaging enemies around Niss. Following up with a Light or Heavy Attack causes Niss to slam back down, further damaging enemies. Following up with a Dodge causes Niss to backflip away.
Level 1: Performing a follow up reduces incoming damage by 30% for 8 seconds.
Level 2: Increases damage by 10%.
Level 3: Backflip follow-up refreshes half of Vengeful Shade cooldown and slam follow-up grants a charge of Shadow Step.