What's the ideal 3-5 pop items to take with you into odyssey B? (which NM's are quickest to down i guess)
Any monster that is natively weak: the fly, beetle, worm (has perfect dodge, annoying).
You can cheese-depop the adds though. They spawn linked to the main NM, but are actually hateless:
Call Valaineral, fight NM to 50%, add will pop. Val will use Uriel Blade to tag everything. Disengage immediately after, before one of your trusts acts on Val (no cures, or they will share hate). Let Val die, and the two adds will depop. Then re-engage and kill.
The main NM will retain his aura through the entire fight, though, so if it's something annoying you have to deal with it. Might be easier than dealing with 3 mobs, if you're solo.
Or if you are BST for some reason like I was, use Generous Arthur, and when adds pop, use Corrosive Ooze then let him die. Adds will depop once the only hate monster that acted on them is gone. Then you can just re-summon him.