Vylon Disigma [HA06-EN052] Secret Rare GX Spirit Caller Promo when a monster is returned

when a monster is returned from the field to the owner's hand

If your opponent controls more monsters than you do: Destroy your opponent's monsters so that your opponent controls the same number of monsters as you (your opponent chooses which of their monsters are destroyed)

using "Mirror Force"

your opponent wins the Duel

this card's name becomes that target's name

Vylon Disigma [HA06-EN052] Secret Rare GX Spirit Caller Promo when a monster is returnedSet: Hidden Arsenal 6: Omega Xyz Card type: Xyz Effect Monster Rarity: Secret Rare Attack: 2500 Defense: 2100 3 Level 4 monsters Once per turn: You can detach 1 Xyz Material from this card to target 1 face up Attack Position Effect Monster your opponent controls; equip that target to this card. At the start of the Damage Step, if this card battles a monster whose Attribute is the same as a card equipped by this effect: Destroy that monster.