Mist Wurm [HA01-EN023] Secret Rare Eternal Duelist Soul if this card battles an

if this card battles an opponent's monster: Destroy that monster (without damage calculation)

• Trap: Each player sends exactly 2 cards from their Deck to the their GY

•If this face-up Normal Summoned/Set card leaves the field: You can Special Summon 2 "World Chalice" monsters from your Deck

then you can negate the attack

you can send this card from your hand to the Graveyard to prevent a "Blackwing" monster you control from being destroyed by this battle

Mist Wurm [HA01-EN023] Secret Rare Eternal Duelist Soul if this card battles anSet: Hidden Arsenal Card type: Synchro Effect Monster Rarity: Secret Rare Attack: 2500 Defense: 1500 1 Tuner + 2 or more non Tuner monsters When this card is Synchro Summoned, return up to 3 cards your opponent controls to the hand.