Ainz, Sorcerer King

Whenever you cast a spell, Put a level counter on
Ainz.
{w}{w}, Remove three level counters: Transform
Ainz.
{u}{u}, Remove two level counters: Draw a card.
{b}{b}, Remove a level counter: Create a 2/3 black
Death Knight creature token with Fear.
{r}{r}, Remove X level counters: Deal X damage to
any target.