Poseidra, the Atlantean Dragon [SDRE-EN001] Ultra Rare Flip/Effect Monster You can only use 1

You can only use 1 "Witchcrafter Collaboration" effect per turn

except "Red-Eyes Darkness Metal Dragon"

Set: Crossed Souls Card type: Fusion/Effect Monster Rarity: Secret Rare Attack: 2800 Defense: 2500 3 "Burning Abyss" monsters with different names Must be Fusion Summoned and cannot be Special Summoned by other ways

except “Red Rose Dragon”

you can remove that many Spell Counters from this card instead

Poseidra, the Atlantean Dragon [SDRE-EN001] Ultra Rare Flip/Effect Monster You can only use 1Set: Structure Deck: Realm of the Sea Emperor Card type: Effect Monster Rarity: Ultra Rare Attack: 2800 Defense: 1600 You can Tribute 3 Level 3 or lower WATER monsters; Special Summon this card from your hand or Graveyard. When you do: Return all Spell and Trap Cards on the field to the hand, and if you do, if 3 or more cards are returned to the hand by this effect, all monsters your opponent currently controls lose 300 ATK for each.