Still requires you to get a tank and a healer up there. Going into p2 @100% isn't very fun either.

Shannox looks next to impossible to box, i guess if you were way overgeared for the content it might not be too big of an issue.

Alysrazor....yea...stuff you have to click, flying in the air...

Lord Rhyolith...might not be that bad, but you have to dodge a lot of fire and coordinate dps pretty well.

Yeah i don't think many of them are multibox friendly...atleast not now