Runecasting Rite

Spells you cast cost X {g} less to cast, where X is
your devotion to green. This effect reduces only
the amount of colored mana you pay.
At the beginning of your end step, scry X, where
X is your devotion to green, divided by three.
You gain that much life. Round down each time.
{6}{g}{g}{g}{g}, {t}: You gain 1 life for each green
permanent you control.