Atomize (Showcase) [Fallout] Blue if Tahngarth is tapped

if Tahngarth is tapped

Set: The Brothers' War Retro Artifacts Type: Artifact Rarity: Uncommon Cost: {1} At the beginning of your upkeep

Set: Eventide Type: Artifact Rarity: Rare Cost: {6} Each opponent who controls more creatures than you can't cast creature spells

Set: Streets of New Capenna Commander Promos Type: Artifact — Clue Rarity: Rare Cost: {1}{G}{U} Agent's Toolkit enters the battlefield with a +1/+1 counter

Atomize (Showcase) [Fallout] Blue if Tahngarth is tappedSet: Fallout Type: Instant Rarity: Rare Cost: {2}{B}{G} Destroy target nonland permanent. Proliferate. (Choose any number of permanents and or players, then give each another counter of each kind already there.)