Gwyn, Lord of Cinder

+2: Gwyn, Lord of Cinder deals 2 damage to target creature. Lose 1 health.
-2: gain 3 red Mana. Then, lose 3 health.
-15: Gwyn, lord of cinder permanently becomes a 0/0 Legendary Creature-boss with haste. then, put 12 +1/+1 counters on Gwyn, Lord of Cinder.