If this card is Special Summoned by a monster effect: You can add 1 "GMX" monster from your Deck to your hand. During your Main Phase: You can Fusion Summon 1 Dinosaur Fusion Monster from your Extra Deck, using monsters from your hand or field. If this card is sent to the GY: You can make all Dinosaur monsters you currently control gain 400 ATK. You can only use each effect of "Returned Dino Daneen" once per turn.