Lt. Surge's Magneton (8/132) [Gym Heroes 1st Edition] 158 I can no longer recall

I can no longer recall where I found it

Set: The Brothers' War Retro Artifacts Type: Artifact Rarity: Rare Cost: {2} Noncreature spells cost {1} more to cast

Set: The Brothers' War Prerelease Promos Type: Legendary Artifact — Powerstone Rarity: Rare Cost: {5} When The Mightstone and Weakstone enters the battlefield

I'll let you choose the blade that slays you

Set: Commander Legends: Battle for Baldur's Gate Type: Enchantment Rarity: Rare Cost: {2}{B} At the beginning of your precombat main phase

Lt. Surge's Magneton (8/132) [Gym Heroes 1st Edition] 158 I can no longer recallSet: Gym Heroes 1st Edition Type: Lightning Rarity: Holo Rare Retreat cost: Colorless,Colorless