Sinister Serpent [SDD-002] Secret Rare Flames of Destruction you can add 1 "Blaze

you can add 1 "Blaze Accelerator" Card from your Deck or Graveyard to your hand

Set: Astral Pack 7 Card type: Fusion Monster Rarity: Common Attack: 2200 Defense: 1800 "Lord of the Lamp" + "Invader from Another Dimension"

or Extra Deck

Set: 2016 Mega-Tins Card type: Normal Monster Rarity: Ultra Rare Attack: 3000 Defense: 2500 This legendary dragon is a powerful engine of destruction

Sinister Serpent [SDD-002] Secret Rare Flames of Destruction you can add 1 "BlazeSet: Stairway to the Destined Duel Card type: Effect Monster Rarity: Secret Rare Attack: 300 Defense: 250 During your Standby Phase, if a "Sinister Serpent" is in your Graveyard, you can return the "Sinister Serpernt" to your hand.