Resistance

Abjuration Cantrip
Casting Time: 1 reaction, which you take in response to you or an ally within range failing a saving throw
Range: 10 feet
Components: VS
Duration: Instantaneous

You channel magical protection to a creature, potentially turning a failure into success.

Target. One creature within range who failed a saving throw.

Effect. The creature can roll a d4 and add the result to the saving throw, potentially turning it into a success.

Cantrip Progression. This spell improves in certain ways when you reach higher levels. At 5th level, the range of this spell becomes 30 feet. At 11th level, when the target rolls a 1 on the die granted from this spell, they may re-roll it and use the new result. At 17th level, the range of the spell becomes 60 feet. At 23rd level, the creature can roll a d6 instead of a d4. At 28th level, if the ability check still fails, the creature may add a d6 to its next saving throw.

Source: PHB 272, SRD

Changelog

Added the improvements from the Evolving Cantrips supplement.
Added epic level cantrip progression.