Disengage root ends rogues lives... FLARE on top of it and watch the rogue hate his life. Hunter should be saccing himself in the opener/stunning rogue off himself with his pet.. Priest Hunter is arguably one of the best comps in 2s if played correctly.
Personally I'd save spirit shell, any good team is gonna wait it out. Sit as much cc as you can without putting your team in the worst spot. Go for fears on the rogue while the mage is getting railed by the hunter/his pet(s).