No, it's apparently tier 1 with feral/sham or mage/sham. It still feels so much worse to do arena as shadow this expansion because of no mobility, squishier without spectral guise, void tendrils or psychic horror. We lost so much but didn't get anything to compensate, so now the melee train sticks to us easier than ever. Don't know about you but having 2 melees interrupting all my casts for an entire game isn't my idea of fun.