He has a good use in the second level of Ishand where you have to be beaten all day. Just move him out of Union range (since he's mounted, he moves through enemies) and sacrifice him.
Best use I ever got out of him
But yes, I prefer Nietzsche really. Durant deals no elemental damage and, as mentioned, Chariot is one of those cards that is basically worthless trash to you but extremely useful for the enemy. You don't see many levels with water though, but Nietzsche is still a overall useful unit.
Plus she's the cute loli of the game! XD