This boss has two mechanics that'll likely mess up newer players:
1. Slide skill defense
2. Death heal
This video shows my initial attempts at overcoming these mechanics and the damage I was able to achieve.
NB: I'm on the fence on gambling for the new unit. Right now there are no anti-tap bosses, but in the event they ever release one, having 2 strong slide attackers for WB could be good....right?