what is demon form right hand spell?

[LAstHongKOnger]

when i m demon form with weapon , there is a spell but dont know what it is?

some kind of red buff?

[Elikir]

If you meant the spell cast with right click, just a typical bolt of darkness

[Wagnaroks]

After turning into demon form, the ability on the right is a "vampire" power. Basically after activating, any form of damage you do will heal you during the time its active