Flood Biomass Collector

Whenever a nontoken creature an opponent
controls dies, exile it.
{2}{b}, Put a creature card exiled with Flood
Biomass Collector into its owner's graveyard: Put
two +1/+1 counters on Flood Biomass Collector.
Draw a card.
{x}{1}{b}: Put target creature card with mana value
X exiled with Flood Biomass Collector onto the battlefield tapped under your control.