Armageddon Clock [Antiquities] SWSH065 Send 1 monster card from

Send 1 monster card from your hand to the Graveyard to destroy all face-up monsters on your opponent's side of the field with an ATK equal to or less than the ATK of the sent monster

return it to the battlefield under its owner's control with a -1/-1 counter on it

Fusion Summon 1 Fusion Monster from your Extra Deck

Must first be Special Summoned (from your hand) by Tributing 1 "Petit Moth" on your 6th turn or later after it was equipped with "Cocoon of Evolution"

while Single Strike and Rapid Strike Pokémon loom large as Rillaboom VMAX

Armageddon Clock [Antiquities] SWSH065 Send 1 monster card fromSet: Antiquities Type: Artifact Rarity: Uncommon 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.