Dual Caster

General Feat (Prerequisite: Level 10+, Spellcasting or Pact Magic feature)

You gain the following benefits.

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

Dual Casting. You can expend up to two spell slots to cast spells on the same turn, ignoring the normal limit of one spell slot per turn.

Double Focus. You can concentrate on two spells at once. While you are concentrating on two spells, you have disadvantage on Constitution saving throws made to maintain concentration, and you make a separate save for each spell. If you cast a third spell that requires concentration, you must choose one of your current spells to end.