Your search for "Magnezone 54/162" revealed the following:
Magnezone - 54/162 - Holo Rare from XY: Breakthrough, available at 401 Games Canada. Rarity: Holo Rare Finish: Holofoil Artist: Hajime Kusajima Card Text:[1LL] Thunder Blast (100)Discard a Lightning Energy attached to this Pokemon.
Magnezone - 54/162 - Rare - Theme Deck Exclusive from Pokemon Theme Deck Exclusives, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Hajime Kusajima Card Text:[1LL] Thunder Blast (100)Discard a Lightning Energy attached to this Pokémon.
Magnezone - 54/162 - Holo Rare - Reverse Holo from XY: Breakthrough, available at 401 Games Canada. Rarity: Holo Rare Finish: Reverse Holo Artist: Hajime Kusajima Card Text:[1LL] Thunder Blast (100)Discard a Lightning Energy attached to this Pokemon.