Sinister Serpent [WC4-E002] Prismatic Secret Rare BT8-022_PR Set: Tournament Promotion Cards Era:

Set: Tournament Promotion Cards Era: Universe Survival Saga Rarity: Promo Game character: Android 16 Color: Green Card type: Battle Power: 15000 Combo power: 5000

Set: Crucible of War Edition: 1st Edition Finish: Rainbow Foil Type: Action Subtype: Attack Rarity: Majestic Class: Brute Cost: 3 Power: 6 If Beast Within is put into a graveyard from anywhere other than the combat chain

Set: Retro Pack 1 Card type: Effect Monster Rarity: Secret Rare Attack: 1500 Defense: 1300 When this monster is destroyed by battle and sent to the Graveyard

Set: Generation Force Card type: Xyz/Effect Monster Rarity: Ultimate Rare Attack: 2000 Defense: 0 2 Level 3 monsters Once per turn: You can detach 1 Xyz Material from this card

Most of them simply split back up into the monsters you used to make them so you can switch your strategy on the fly

Sinister Serpent [WC4-E002] Prismatic Secret Rare BT8-022_PR Set: Tournament Promotion Cards Era:Set: World Championship 2004: GBA Promo Card type: Effect Monster Rarity: Prismatic Secret Rare Attack: 300 Defense: 250 During your Standby Phase, if a "Sinister Serpent" exist in your Graveyard, you can return the "Sinister Serpent" to your hand.