I start with the Shaman stacked right at base of ramp. Tank him in middle and run through/under him to avoid pound.

When he burrows I just put the shaman on follow drop a new set of totems which include 4 heal totems. Circle right around continually moving and Holy wrathing and drop concecrate on the bottom of the ramp when passing each time. Once the elites are down I stop burn them hard, as soon as the rumble on ground shows for spikes I strafe the whole lot sideways, nuke again. Back the shammies off to edge and repeat.

On the Third time burrowing I use my fire eles as soon as the elites start I was getting overwhelmed on this wave every time. When he comes back up i pop heroism and go to town.