Spell Mimicry

You have learned to copy the movements and words of spellcasters, allowing you to replicate their spells.

As a reaction when a cantrip or level 1 spell is cast within 60 ft of you that you can see, you can use your reaction to try to learn how to cast that spell. Make a dc 13 arcana check. If you succeed, you learn the spell and can cast it using your charisma modifier. If it is a level 1 spell you can cast it once per long rest. If you learn a new spell using this ability you forget the old one.

Once you use this ability you must complete a long rest before using it again.