Wrath is still very lag efficient damage. Use that when he's whirling you, then switch to strike of faith when he starts lagging you.

Defiance is a no-go here, because buddy is neutral. This also means no blademasters in this situation.

Offensive weapon anoints are not useful.

Several useful virtue powers are rendered useless due to buddy here being neutral/rager, such as Light of Heaven, Fire and Brimstone, Force of Will, Divine Retribution et cetera.

Paladins are specialized to fighting evil types. Not homicidal murder machines that generally require little excuse to kill-ohwait...