Sovereign Symbiotes

Graft 2
Whenever Sovereign Symbiotes or another nontoken creature you control dies, put X 0/0 green and blue Mutant creature tokens with graft 1 onto the battlefield, where X is the
number of +1/+1 counters that were on it.

"Perhaps you should have enquired as to whose lifetime, precisely, the lifetime warranty covered."
-Nye, Simic Complaint Hotline