Circle of inspiration

You inspire up to 8 creatures of your choice within range. Whenever a target makes an ability check, an attack roll or a saving throw, the target can roll a d10 and add the number rolled to the ability check, attack roll or saving throw.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, you give an extra 1d10 to the creature for each slot level above 5th.