Nine-Tailed Heir

You are blessed with multiple tails, which increase in number as you gain experience. Starting at 3rd level, and every two levels thereafter, you grow an additional tail (up to a maximum of four additional tails, unless you have gained this feat twice). Each additional tail grants you an additional spell you can cast; You can cast disguise self, starting at 3rd level you can cast charm person, at 5th level you can cast invisibility, at 7th level you can cast blur, at 9th level you can cast sleep at a spell level that is equal to your proficiency bonus with this trait, at 11th level you can cast spirit shroud, at 13th level you can cast confusion, at 15th level you can cast greater invisibility, and at 17th level you can cast dominate person. You can cast these spells once with this trait and regain the ability to do so after finishing a long rest. You can also cast these spells using spell slots you have of the appropriate level. Your spellcasting ability for these spells is Intelligence, Wisdom, or Charisma (your choice). When you cast produce flame, you instead create a number of flames equal to your number of kitsune tails, which hover close around you. When you hurl one of these flames, the rest of the flames (if any) will remain for the next minute or until you cast this spell again. Provided you have enough flames, you can hurl a flame as part of casting the spell, as an action, or as a bonus action. If you hurl a flame as a bonus action, its damage dice become d4, unless you hurl it as part of a quickened cast.

Special: You can gain this feat twice. Each time you gain it the maximum number of extra tails you can grow increases by 4.