Wake of Tranquility - Strat/use?

[iruinedyourday]

Hey guys, wondering what the strat/use of this spell is? I mean for me it seems to be a good thing when a bunch of greens aggro on you and your like, SHUTUP!

but - does it have other use's that the regular memory blur doesn't have? I suppose if you memory blur 2 rooted mobs in range of each other? hmmm ok yea I can see the use.

Is that right, or is there more? Thanks!