Gabalar, Wandering Wielder

Whenever you cast an instant or sorcery,
choose one -
• Gain life equal to target green spell's mana
value. Draw a card.
• Deal damage equal to target red spell's mana
value to any target. Draw a card
• Scry X, where X is target blue spell's mana
value. Draw a card.
"The storm provides." - Madonna, probably.