Castle of Dragon Souls (SDBE-EN033) - Structure Deck: Saga of Blue-Eyes White Dragon Unlimited

Once per turn: You can banish 1 Dragon-Type monster from your Graveyard, then target 1 face-up monster you control; it gains 700 ATK, until the End Phase. (This ATK gain remains even if this card leaves the field or the monster becomes unaffected by card effects.) When this face-up card is sent to the Graveyard: You can target 1 of your banished Dragon-Type monsters; Special Summon that target. You can only control 1 face-up "Castle of Dragon Souls".