Glibness

Source: Player's Handbook (2024)

8th Level Enchantment (Bard, Warlock)

Casting Time: Action Range: Self Components: V Duration: 1 hour

Until the spell ends, when you make a Charisma check, you can replace the number you roll with a 15. Additionally, no matter what you say, magic that would determine if you are telling the truth indicates that you are being truthful.