[Requirement] You can activate if there are 3 or more monsters with the same Type in your Graveyard when your opponent Normal Summons/Sets a monster.
[Effect] Choose and shuffle 3 monsters with the same Type in your Graveyard back into the Deck. If you control no Attack Position monsters, you can also choose 1 monster (Level 7 or lower) in your Graveyard and Special Summon it face-up.