I want to see how well they do with Spirit Guardians.
A Nature Cleric would be awesome with Shillelagh and that 2d12 greatclub that can be obtained from the Minetaur.
HULK SMASH!
They get Element damage at level 8 too and / or dip into Barbarian for the Reckless Attack and pick up Great Weapon Fighter. Just dump int and talk like Minsk.