Avi

As a bonus action, Avi can expend a spell slot to cause its melee weapon attacks to magically deal an extra 10 (3d6) Radiant damage to a target on a hit. This benefit lasts until the end of the turn. If Avi expends a spell slot of 2nd level or higher, the extra damage increases by 1d6 for each level above 1st.

Melee Weapon Attack +2 to hit, reach 5 ft., one target. 3 (1d6) Bludgeoning damage.