Saprophyte Hydra

Assimilate - At the beginning of each end step, put a +1/+1 counter on Saprophyte Hydra for each non-Fungi creature that died this turn.
Saprophyte Hydra has trample as long as it has seven or more +1/+1 counters on it.
{1}{g}, {ut}, Remove a +1/+1 counter from Saprophyte Hydra: Untap another target Fungi creature you control.