Andrew, Electronic Oracle

+3: Heal 1+H, where H is equal the number of times this ability has been used.
-1: Deal 1+Y damage to target creature or planeswalker, where Y is equal to the number of creatures and planeswakers in play.
-15: Scry 10, then Draw 10, then if this card was destoryed using this effect, add 10 blue, 10 white, and 10 red mana to your mana pool