Dark Samus, Phazon Prime

Dark Samus, Phazon Prime enters the battlefield
with X -1/-1 counters. Creatures you control get
+2/+2 for each -1/-1 counter on them. When attacking, you may remove any number of -1/-1 counters from Dark Samus and distribute
them among target creatures in combat, then proliferate. If Dark Samus is sent to the graveyard
from the battlefield, remove all -1/-1 counters
from the battlefield.
{ut}Take control of target creature that has three
or more -1/-1 counters.