World Legacy - "World Armor"

[ Machine / Effect ] When a monster is Flip Summoned: You can Special Summon this card from your hand. If this card is Normal or Special Summoned: You can add 1 "World Legacy" card from your Deck to your hand. If this Normal Summoned/Set card is on the field (Quick Effect): You can target 1 face-up opponent's monster that was Special Summoned from the Extra Deck; return both that monster and this card to the hand. You can only use each effect of "World Legacy - "World Armor"" once per turn. ATK/ 2500 DEF/ 2500