Ral, Firemind Ascendant

+2: Flip a coin. If you win the flip, draw two cards. If you lose, Ral deals 2 damage to target creature or player.
-1: Until your next turn, if a spell you control would be countered, return that spell to its owner's hand.
-6: Draw 10 cards, then discard 5 cards. Ral deals damage to each opponent equal to the total converted mana cost of each card discarded this way.