Set 2

Each Combo/Charged ATK (CD: 1s) adds 1 charge. At 4 charges, the host enters Mist Form for 6s. (CD: 20s; all charges will be removed when Mist Form ends). Mist Form: Deals 600 Physical DMG against a random enemy within 6-meter radius of self every 0.25s; each target will take no more than 1 hit in each 0.5s span.

Set 3

When the Mist effect ends, heal every ally for 30 HP/s for 6s.