Azeg, The Thousand-Headed

Trample, Azeg enters the battlefield with
half X +1/+1 counters rounded up.
{1}{u}; Until your next turn hydras
you cast have flash.
{1}{g}; Put a +1/+1 counter on
target hydra you control
{2}{r}; Target hydra you control
fights target creature you don't control
Hydras you control cost X less to cast