Beacon of Luck

This is a conversion of the Beacon of Luck spell from Pathfinder 1e

You bless up to five creatures of your choice within range. Whenever a target makes a saving throw before the spell ends, the target can roll a d4 and add the number rolled to the attack roll or saving throw.

A creature affected by the spell can choose to gain advantage on a saving throw as a reaction; if they succeed, the spell ends for them.

A cleric who worships Desna can replace one of their 3rd level Domain spells with this spell. The decision to substitute a Domain spell must be made upon gaining a new level of cleric, but you can change your decisions on the matter when you level up again.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you can target one additional creature for each slot level above 3rd.