Sinister Serpent [SDD-002] Secret Rare Flames of Destruction for each of those monster(s)

for each of those monster(s) instead

You can only use each effect of "Duoterion" once per turn

Inflict 300 points of damage to your opponent's Life Points for each card that is sent to the Graveyard by this effect

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

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

Sinister Serpent [SDD-002] Secret Rare Flames of Destruction for each of those monster(s)Set: 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.