Rapid Ridicule

You can think of scathing comments on the fly:

• Increase your Charisma score by 1, to a maximum of 20.
• You learn the Vicious Mockery cantrip, and you can cast it as a bonus action. Charisma is your spellcasting ability for this spell.
• When a creature within 15 feet of you makes an attack against you and misses, you can use your reaction to cast Vicious Mockery targeting that creature.