Eusebio's Mental Flame

Implant the memories of a spontaneous combustion into one creature's brain! Until the end of your next turn, they tuck and roll into prone to put it out until the end of your next turn! The target must make an Intelligence Save against your Spell Save DC or take 4d8 Psychic damage and 2d6 Fire Damage on failure, taking half on a successful save and not falling prone. You can target an additional creature for every spell slot above 4th Level.