Argentum Armor [Game Night: Free-for-All] Multiplayer Armageddon Clock deals damage equal

Armageddon Clock deals damage equal to the number of doom counters on it to each player

if it's a creature

you may convert Megatron

(Exile a creature card from your graveyard and pay its mana cost: Put a number of +1/+1 counters equal to that card's power on target creature

That description is still mostly accurate

Argentum Armor [Game Night: Free-for-All] Multiplayer Armageddon Clock deals damage equalSet: Game Night: Free for All Type: Artifact Equipment Rarity: Rare Cost: {6} Equipped creature gets +6 +6. Whenever equipped creature attacks, destroy target permanent. Equip {6} Mirrodin's creator still lives, still shapes metal, and still commands world shaking power.