u need strong ic set, and mostly shield passive, u have to run his AI then force him to use tol, run it again, force his uds, run and sit, then go full damage on him, u should trick him, run make him change to bow then go melee force him change sword then run, use riposte on slams(if its a good geared paladin and u have good geared glad u just have no chance)
PD: never use aoes against paladins because aoes uses alot of mana