Bronzebeard Duo in the lair tips

Hey me and my brother are trying duo in the lair as a prot pally holy priest combo. We’re lvl 20 and cleared up to smite in deadmines but want to optimize everything before going forward.

we have profs for crafted gear, have magic dust for ads but were wondering if anyone has any good tips, advice or of theres any items ascension added that could be useful

Thanks!