Master Of Mana

When Master Of Mana enters the battlefield, for each {w} spent to cast it, you gain 3 life. For each {u} spent to cast it, you draw a card. For each {b} spent to cast it, destroy target creature and you lose 2 life. For each {r} spent to cast it, deal 2 damage to target creature or player. For each {g} spent to cast it, Master Of Mana gets +1/+2.