Armor Class 17

Hit Points 45hp (7d8+14) 7d8+14

Speed 30ft

Languages Common, Va-nox

Second Wind

(1/short or long rest) As a bonus action Kayn can heal himself 1d10+6.  

Reaping Slash

Kayn may choose to attack in an arc with a range of 10ft with Rhaast, comparing the attack roll against the AC of all creatures within range, dealing the damage to any that he hits.  

Umbral Tresspass

(1/short or long rest) As a free action you and Rhaast separate, creating an ethereal version of yourself until the end of your next turn. This ethereal version adopts your AC and speed and any damage it takes is halved then dealt to yourself. It can only take the attack action, however if you have a multiattack it also gains this benefit.