Armageddon Clock [Revised Edition] Shark Bird Set: Strixhaven: School of Mages

Set: Strixhaven: School of Mages Mystical Archive Type: Instant Rarity: Rare Cost: {W}{B} Exile target permanent with converted mana cost 4 or greater

Set: Jumpstart 2022 Type: Enchantment — Aura Rarity: Uncommon Cost: {1}{R} Enchant creature

So I help myself to some of it from time to time

and all creature and planeswalker cards in graveyards with mana value less than or equal to the number of void counters on it

Remove an oil counter from Serum Sovereign: Draw a card

Armageddon Clock [Revised Edition] Shark Bird Set: Strixhaven: School of MagesSet: Revised 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.