Your search for "basic darkness energy 7" revealed the following:
Basic Darkness Energy - MEE007 - Common from Mega Evolution Energies, available at 401 Games Canada. Rarity: Common Finish: Normal
Basic Darkness Energy - SVE007 - Common from Scarlet & Violet Energies, available at 401 Games Canada. Rarity: Common Finish: Normal
Basic Darkness Energy - 015 - Futuristic Rare from Mega Evolution: 30th Celebration, available at 401 Games Canada. Rarity: Futuristic Rare Finish: Holofoil Artist: YOSHIROTTEN
Darkness Energy (Basic) - 129/130 - Common from Diamond & Pearl (Base Set), available at 401 Games Canada. Rarity: Common Finish: Normal
Dark Houndoom - 7/105 - Holo - Unlimited from Neo Destiny Unlimited, available at 401 Games Canada. Rarity: Holo Rare Finish: Holofoil Artist: Kagemaru Himeno Card Text:[1] Eerie HowlIf your opponent's Bench isn't full, look at his or her hand....
Basic Darkness Energy (Japanese) - 134/SM-P - Promo from SM-P: Sun & Moon Promos, available at 401 Games Canada. Rarity: Promo Finish: Holofoil Artist: Basic Darkness Energy
Basic Darkness Energy - SVE007 - Cosmos Holo from Scarlet & Violet Energies, available at 401 Games Canada. Rarity: Common Finish: Holofoil
Darkness Energy - 7/30 - Common from Black & White Trainer Kit: Excadrill & Zoroark, available at 401 Games Canada. Rarity: Common Finish: Normal
Basic Darkness Energy (Japanese) - 350/SM-P - Promo from SM-P: Sun & Moon Promos, available at 401 Games Canada. Rarity: Promo Finish: Holofoil Artist: Basic Darkness Energy
Basic Darkness Energy (Japanese) - 188/SM-P - Promo from SM-P: Sun & Moon Promos, available at 401 Games Canada. Rarity: Promo Finish: Holofoil Artist: Basic Darkness Energy
Basic Darkness Energy - MEE007 - Common - Reverse Holo from Mega Evolution Energies, available at 401 Games Canada. Rarity: Common Finish: Reverse Holo
Basic Darkness Energy (Japanese) - 043/SV-P - Promo from SV-P: Scarlet & Violet Promos, available at 401 Games Canada. Rarity: Promo Finish: Holofoil Artist: Basic Darkness Energy
Basic Darkness Energy (Japanese) - DAR - Futuristic Rare from M6a: 30th Celebration, available at 401 Games Canada. Rarity: Futuristic Rare Finish: Holofoil Artist: YOSHIROTTEN
Basic Darkness Energy (Japanese) - 029/M-P - Promo from M-P Promotional Cards, available at 401 Games Canada. Rarity: Promo Finish: Holofoil
Basic Darkness Energy - 098/064 - Hyper Rare from Scarlet & Violet: Shrouded Fable, available at 401 Games Canada. Rarity: Hyper Rare Finish: Holofoil Artist: Basic Darkness Energy
Basic Darkness Energy - SVE023 - Common - Reverse Holo from Scarlet & Violet Energies, available at 401 Games Canada. Rarity: Common Finish: Reverse Holo
Basic Darkness Energy (Japanese) - 095/066 - Ultra Rare from SV4K: Ancient Roar, available at 401 Games Canada. Rarity: Ultra Rare Finish: Holofoil Artist: Basic Darkness Energy
Dark Houndoom - 7/105 - Holo - 1st Edition from Neo Destiny 1st Edition, available at 401 Games Canada. Rarity: Holo Rare Finish: Holofoil Artist: Kagemaru Himeno Card Text:[1] Eerie HowlIf your opponent's Bench isn't full, look at his or...
Energy Amplifier (Japanese) - T07 - Uncommon from Darkness and to Light..., available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: "Big Mama" Tagawa, CR CG gangs Card Text:Choose an Energy card in your hand, show it to your...