One DnD Playtest 2
Guidance
0-level (Cantrip) Divination
Casting Time: Reaction, which you take in response to you or an ally within 10 feet of you failing an Ability Check
Range/Area: 10 feet
Components: V, S
Duration: Instantaneous
You channel magical insight to the creature who failed the Ability Check. That creature can roll a d4 and add the number rolled to the check,potentially turning it into a success.
Available for: Artificer, Cleric, Druid