Regal Charm

You've learned how to weave the words of you and your allies with a subtle strand of magic to make even the least charismatic dragonborn speak with grace.

This feat grants two abilities. Firstly, when you're standing within 10 feet of an ally, Your grant them a +3 bonus to all Charisma checks. You also gain this bonus passively for yourself.

Secondly, when you or an ally within 10 feet of you makes a charisma check, you can expend a spell slot and grant them an additional bonus to charisma checks equal to the spell slot you spent. You can spend multiple spell slots at once but can only spend a total of 4 each long rest