Maleceptor

Maleceptor enters the battlefield with X +1/+1 counters on it.
At the beginning of your upkeep, double
the number of +1/+1 counters on Maleceptor.
Maleceptor has trample as long as it has ten
or more +1/+1 counters on it.
(Maleceptor's name is treated
as "Primordial Hydra")