Armageddon Clock [Fourth Edition] Elemental Shapeshifter * When your opponent's monster

* When your opponent's monster declares an attack you can select it

Search your library for an artifact card

Set: Legendary Collection 4: Joey's World Card type: Effect Monster Rarity: Common Attack: 3000 Defense: 2100 Cannot be Normal Summoned/Set

You can target 1 other "Gagaga" monster you control

Set: Ancient Guardians Card type: Effect Monster Rarity: Super Rare Attack: 400 Defense: 2400 If this card is in your GY: You can Tribute 1 monster

Armageddon Clock [Fourth Edition] Elemental Shapeshifter * When your opponent's monsterSet: Fourth Edition Type: Artifact Rarity: Rare Cost: {6} At the beginning of your upkeep, put a doom counter on Armageddon Clock. At the beginning of your draw step, Armageddon Clock deals damage equal to the number of doom counters on it to each player. {4}: Remove a doom counter from Armageddon Clock. Any player may activate this ability but only during any upkeep step.