Mist Wurm [HA01-EN023] Secret Rare 2007 Collectors Tin During battle between this attaching

During battle between this attaching card and a Defense Position monster whose DEF is lower than the ATK of this card

While equipped by this effect

If the monster is a Flip Effect Monster

if this card battles a monster whose Attribute is the same as a card equipped by this effect: Destroy that monster

(You do not use "Polymerization"

Mist Wurm [HA01-EN023] Secret Rare 2007 Collectors Tin During battle between this attachingSet: 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.