Originally Posted by
scubistacy
Regarding shadow - if you don't have success with 2 phase strategy, try the 4 phase one. P1 and P2 you play normally, kite Karam, use void form without S2M, and burn Raest as much as you get.
Then, when Karam reactivates the 2nd time, use S2M immediately, so you stay mobile, and go into voidform when the 2nd hand spawns. This way, you can surely avoid the 3rd hand spawning when Karam goes into purgatory again, and will be able to burn down Raest in P4 easily.
Worked out well with my shadow with item level of about 915 (chest + shoulders legendaries). You just need to have your insanity as high as possible in the transition from P3 to P4, when Raest activates again. I just sent my Mindebender (talented) after Raest immediately after getting the first dot on him. Also save Void Torrent for P4 after you enter Void Form with S2M active. I don't even remember if I had a rune in P4. I did not pay attention to that anymore. But you can handle that with Mind Bomb on the adds.
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If you do the 2 phase strategy, you use S2M immediately on pull, but enter Void Form when Karam reaches his HP threshold you are comfortable with.