Panharmonicon (Foil Etched) [Double Masters 2022] ARC209-C where X is the exiled

where X is the exiled card's mana value

Set: Double Masters Type: Artifact Creature — Construct Rarity: Rare Cost: {X}{X} Walking Ballista enters the battlefield with X +1/+1 counters on it

Whenever a nontoken creature enters the battlefield under your control

Sacrifice Engineered Explosives: Destroy each nonland permanent with mana value equal to the number of charge counters on Engineered Explosives

Panharmonicon (Foil Etched) [Double Masters 2022] ARC209-C where X is the exiledSet: Double Masters 2022 Type: Artifact Rarity: Rare Cost: {4} If an artifact or creature entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time. All who listen hear their own song, a unique melody played just for them.