Saria, Sage of the Deep Forest

Melody {2}{g}{g} ({2}{g}{g}, {t}, Untap another tapped creature you control: Draw a card. Activate this ability only any time you could cast a sorcery.)
Whenever you activate Saria, Sage of the Deep Forest's melody ability, scry 2, then reveal the
top card of your library. You gain life equal to
the revealed card's converted mana cost.
"Please don't forget this song! Do you promise?"
- Saria, to Link