If you're an undergeared tank there you can use some tools to ease your healer's job.
Shadow - Force speed
Shadow - 1st time resilienice = 0 dmg, 2nd time phase walk out, 3rd time resilience, 4th time force speed out and drop phase walk, 5th resilience, 6th phasewalk and so on.... This is one of the easier bosses. Annoying is the last boss, no matter how overgeared and if you even can solo him.
'slingers with thei cover mechanic are usually going down, but this is a good source of some chuckle
Hunker down FTW