Dragon Force (SGX3-ENS10) [Speed Duel GX: Duelists of Shadows]

Once per turn, during your Main Phase, you can banish 1 Dragon Normal Monster from your GY to make 1 Dragon Normal Monster you control gain 200 ATK x that banished monster's Level until the end of this turn, also if it attacks a Defense Position monster this turn, inflict piercing battle damage to your opponent.