Hellish Burn Dragon

(Hand):You may discard this card as a [Heal] for the cost of calling a G guardian. :When this unit is put on from hand, [remove a [Heal] from hand or drop], and this unit gets +10000 until end of that battle for each of your opponent's open . If your opponent has one or less open , 1, choose one of your vanguards, and it gets +5000 until end of turn.