Gift of Luck

1st Level Coactimancy
Casting Time: 1 action
Range: Touch
Components: V S
Duration: 8 Hours
Classes: Sorcerer, Wizard, Bard
You touch a willing creature within range. For the duration, that creature gains a single luck point. Whenever they make an attack roll, ability check, or saving throw, they may spend this luck point to roll an additional d20. You can use this feature after the original roll, but before the outcome is revealed. You choose which of the d20s is used for the attack roll, ability check, or saving throw.
You can also spend the luck point when an attack roll is made against you. Roll a d20, and choose whether the attacker's roll uses their d20 roll or yours.