Regigigas (DP40) [Diamond & Pearl: Black Star Promos] SM108 place it on the bottom

place it on the bottom of your Deck

and if you do

and Special Summon that Fusion Monster from your Fusion Deck

Set: Duel Terminal 3 Card type: Quick Play Spell Rarity: Super Rare Select up to 3 removed from play monsters and return them to their owner's Graveyards

Set: Elemental Hero Collection 2 Card type: Effect Monster Rarity: Secret Rare Attack: 1500 Defense: 1600 This card is unaffected by the effects of Trap Cards

Regigigas (DP40) [Diamond & Pearl: Black Star Promos] SM108 place it on the bottomSet: Diamond & Pearl: Black Star Promos Type: Colorless Rarity: Black Star Promo Retreat cost: Colorless,Colorless,Colorless,Colorless