Secreterion Dragon [DUAD-EN037] Ultra Rare CRU051 or Special Summoned (from your

or Special Summoned (from your Extra Deck) by banishing the above cards you control (in which case you do not use "Polymerization")

Set: Battles of Legend: Hero's Revenge Card type: Link/Effect Monster Rarity: Secret Rare Attack: 3000 3+ Effect Monsters Cannot be destroyed by battle

The complete Spell Ruler booster set is 104 cards :

Set: Sword & Shield: Crown Zenith Type: Darkness Rarity: Holo Rare Retreat cost: 1

Secreterion Dragon [DUAD-EN037] Ultra Rare CRU051 or Special Summoned (from yourSet: Duelist's Advance Card type: Fusion Effect Monster Rarity: Ultra Rare Attack: 3000 Defense: 1500 1 Dragon monster + 1 Spellcaster monster This card loses 100 ATK for each of your banished cards. While you control this Fusion Summoned card, your opponent cannot activate the effects of Special Summoned Dragon or Spellcaster monsters they control. You can target 1 Dragon and 1 Spellcaster monster in your GY; Special Summon 1, and if you do, place