Marwyn, the Nurturer

Whenever another Elf enters the battlefield
under your control, put a +1/+1 counter on
Marwyn, the Nurturer
{t}: Add an amount of {g} equal to Marwyn's
power.
-Hydras are loyal guardians that protect us from
harm and defend us with their lives. Why Hydra's
you ask?........ Because their so damn adorable obviously!