Guidance

Divination cantrip
Casting Time: 1 reaction, which you take when you see a creature make an ability check.
Range: 30ft
Components: V, S
Duration: Instantaneous
The targeted creature can roll a d4 and add the number rolled to the ability check. You can target a creature after the d20 is rolled, but before the DM reveals if the check is a success or failure. Once a creature has been targeted with this spell, that creature cannot be targeted again until the caster completes a short rest.
Spell Lists: Artificer , Bard, Cleric, Druid