Number 66: Master Key Beetle [MP14-EN099] Super Rare New Awakening inflict damage to your opponent

inflict damage to your opponent equal to half the ATK that monster had on the field

and it now lives only to unleash destruction

Set: The Dark Illusion Card type: Effect Monster Rarity: Rare Attack: 1800 Defense: 1200 During either player's turn: You can send 1 "Subterror" monster from your Deck to the Graveyard

Set: Crossed Souls: Advanced Edition Card type: Continuous Trap Rarity: Super Rare If you control a "Red-Eyes" monster

if it is a DARK Monster Card

Number 66: Master Key Beetle [MP14-EN099] Super Rare New Awakening inflict damage to your opponentSet: 2014 Mega Tins Mega Pack Card type: Xyz Effect Monster Rarity: Super Rare Attack: 2500 Defense: 800 2 level 4 DARK monsters Once per turn: You can detach 1 Xyz Material from this card, then target 1 card you control, except this card; while this card is face up on the field, that card(s) cannot be destroyed by card effects. If this face up card would be destroyed, you can send one of its targets to the Graveyard instead.