Half or Nothing [BP01-EN101] Starfoil Rare XY94 then select 1 card from

then select 1 card from your hand and return it to the bottom of your Deck

attach this card to it as Xyz Material

Set: Sun & Moon: Trainer Kit - Alolan Raichu Type: Psychic Rarity: Promo Retreat cost: 0

Set: World Championships 2010 Type: Water Rarity: Rare Retreat cost: Colorless

and/or your side of the field as the Fusion Materials

Half or Nothing [BP01-EN101] Starfoil Rare XY94 then select 1 card fromSet: Battle Pack: Epic Dawn Card type: Normal Trap Rarity: Starfoil Rare During your opponent's Battle Phase (except during the Damage Step): Your opponent chooses 1 of these effects. Halve the ATK of all monsters they currently control, until the end of the Battle Phase. End the Battle Phase.