Kalec Rahl, Storm Scryer

+1: Deal 1 damage to target creature, player. or planeswalker; draw a card.
-1: Deal 2 damage to target creature, if this destroys it, add 3 mana of any one color.
-15: Deal 20 damage to target opponent, target opponent then discards their hand and puts the top 20 cards of their library into their graveyard.