Scylla, Vortex Devourer

Deathtouch
{b/g}: Regenerate Scylla, Vortex Devourer
When you cast this spell, create X X/X blue,
black, red, and green Hydra Leviathan creature
tokens with deathtouch.
Scylla, Vortex Devourer enters the battlefield
with X +1/+1 counters on it.