Creature — Hydra
4 / 3
When this creature enters, you get



(three energy counters).
Pay



: Put a +1/+1 counter on this creature. It gains hexproof until end of turn.
Some triggered abilities state that you "may pay" a certain amount of
. You can't pay that amount multiple times to multiply the effect. You simply choose whether or not to pay that amount of
as the ability resolves.