Combination Caster

You are a master of casting powerful spells one after the other. You gain the following benefits: Increase your Intelligence, Wisdom, or Charisma score by 1, to a maximum of 20.

Choose a 1st-level spell that has a casting time of 1 bonus action and add it to one of your classes’ spell lists. This spell is considered known and prepared for you, but doesn’t count against your spells known or prepared.
When you cast a spell of 1st level or higher that has a casting time of 1 bonus action, you can use your action this turn to cast a spell of 1st level or higher with a casting time of 1 action, expending a spell slot as normal. Once you use this ability, you can’t use it again until you finish a short or long rest.