Gorph, Nature's Warden

Whenever this creature enters the battlefield or transforms into Gorph, Nature's Warden, you
gain life equal to the greatest power among
creatures you control.
At the beginning of your upkeep, you may pay {1}{g}{w}. If you do, transform Gorph, Nature's
Warden.
"Selune has offered me a gift to protect those worthy of
my trust."