Magmablood Archaic
{2/R}{2/R}{2/R}Creature — Avatar
Reach, trample Converge — This creature enters with a +1/+1 counter on it for each color of mana spent to cast it. Whenever you cast an instant or sorcery spell, creatures you control get +1/+0 until end of turn for each color of mana spent to cast that spell.