https://wccftech.com/witcher-3-magic-spells-mod/

This The Witcher 3: Wild Hunt modification for PC offers new magic casting abilities for Geralt.

Created by modder ‘Menschfeind13’, this mod packs new magic abilities, including the casting of Tornadoes, Fireballs, Meteors, Cold Stars and the ability to summon golems. In addition, Geralt can also become invisible for a short period of time.