Cyber Twin Dragon [SDCR-EN037] Ultra Rare Vaccine or if a LIGHT monster

or if a LIGHT monster was sent from the hand or Deck to the Graveyard this turn while this card was face-up on the field: You can activate 1 of these effects

Necron Dynasties

You can only use this effect of "Majespecter Fox - Kyubi" once per turn

attach 1 Insect-Type monster from your hand to that monster as Xyz Material

Cyber Twin Dragon [SDCR-EN037] Ultra Rare Vaccine or if a LIGHT monsterSet: Structure Deck: Cyber Dragon Revolution Card type: Fusion Effect Monster Rarity: Ultra Rare Attack: 2800 Defense: 2100 "Cyber Dragon" + "Cyber Dragon" A Fusion Summon of this card can only be done with the above Fusion Material Monsters. This card can make a second attack during each Battle Phase.