Shadowknight and Shammy duo

[Stonewallx39]

I'm thinking these two would make a good duo pair.

At low to middle levels you have two decent melee characters.

Once you get fear you have good low mana dps with shaman dots and SK + pet melee. The SK snare adds a nice dynamic to the duo (do shamans get a snare?)

At high levels the Shaman can root and SK can joust mob with high delay 2 handed weapon. Do any SK and Shammy dots stack?

You have decent dungeon crawling ability with single pulls from SK feign death and some simblance of croud control with Shammy rooting.

What does everyone else think? I've always heard monk shaman is great duo. Would that be significantly better?