Eldritch Perikin

Further meditation has expanded not only your own mind, but the mind of your tailsnake. This allows you to use both of your heads to focus on the spells you cast.

Ability Score Increase. Increase your Intelligence, Wisdom, or Charisma score by 1, to a maximum of 20.

Twin Minds. You can concentrate on two spells at once. When making Concentration checks, you must make a separate check for each spell you are concentrating on.

Eldritch Magic. Additionally, you learn one first-level spell of your choice which requires Concentration. You can cast this spell without a spell slot, and you must finish a long rest before you can cast it in this way again. You can also cast the spell using any spell slots you have. Your spellcasting ability for this feat’s spells is Intelligence, Wisdom, or Charisma (choose when you select this feat).