The user is able use a form of magic that allows them to manipulate electricity/lightning and cast magical spells related to electricity/lightning. Users often also gain access to esoteric lightning/electricity.
Gwen Tennyson (Ben 10: Ultimate Alien) using the lightning spell, Tempestus Impaetus, to defend herself from Ultimate Kevin.
Tessai Tsukabishi (Bleach) using Hado 88: Flying Dragon-Striking Heaven-Shaking Thunder Cannon to fire a tremendous blast of lightning.
Empowered by his Lord Soul, Gwyn, Lord of Sunlight (Dark Souls) was able to conjure lightning, which he used to peel away the Everlasting Dragon's scales and win the war against them.
The Nameless King (Dark Souls III) using the same lightning power as his father, Lord Gwyn.
Storm fairies (Disney Fairies) can manipulate lightning.
Shock Damage (The Elder Scrolls V: Skyrim)
Judar (Magi: The Labyrinth of Magic) using Lightning Magic.
Merlin (Red Shoes and the Seven Dwarves)
Maleficent (Sleeping Beauty)
Sorcerers (The Sorcerer's Apprentice) are able to conjure lightning.
Diviners (Wizard 101) are wizards from the School of Storms, with power over lightning magic.
Both Zatch and Zeno (Zatch Bell!) can create different forms their of lightning when their respective partners Kiyo and Dufort read their spells. However, Zeno's lightning is far more powerful than his brother's, and he's able to remain conscious when he attacks.