MM said:Divine Eminence. As a bonus action, the priest 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 the priest expends a spell slot of 2nd level or higher, the extra damage increases by ld6 for each level above 1st.
One of my players would like this in place of one of the War Cleric's features, but which one would you replace, and what level would be your minimum?