Flare of the Dragon King (MP01-073 MR) [Masterpiece "Pilgrim-Memories"]

Dragon J/resonators you control gain [+200/+200]. If a Dragon source you control or an addition you control named "Realm of the Dragon King" would deal damage to a resonator your opponent controls, it may deal that much damage to your opponent and each J/resonator they control instead. Apply this effect only once per turn and only if you control two or more magic stones named "Milest, the Ghostly Flame Stone". [Enter] >>> If you control a J/ruler named "Falltgold, the Dragoon" or "Bahamut, the Dragon King", you may search your deck for a card named "Realm of the Dragon King" and put it into the field. If you do, shuffle your deck.