Vthan the Fire Sorcerer

+2: Target creature takes 3 damage if that creature is destroyed by that damage, another target creature takes 3 damage.
-4: Deal 5 damage to any opponent if that opponent is at lower than 10 health after that damage, deal another 3 damage to the same opponent.
-X: Deal X damage to target player. Then deal X damage minus 1 to target creature. Then deal X damage minus 2 to target creature.