Fastipidis, Akronian Hoplite

First Strike
Other creatures you control get +1/+1.
Whenever Fastipidis, Akroan Hoplite deals
damage put a +1/+1 counter on it.
At the beginning of your upkeep, if you have
three or more +1/+1 counters on Fastipidis,
Akroan Hoplite, you may transform it.