Second boss Ekpyrosis:
T/H n/w, DPS s/e; if swaps are needed ranged and healer swap.

Third boss Hands:
T/M & H/R pairs
if n/s safe T/M north H/R south
if e/w safe go next to your add
if a pair has two tethers DPS swap

Third boss Soldiers of Death:
Find where the blue add is shooting, the safe spots will be opposite of that.
T/H will go to closet safespot to blue, DPS to farthest.
Bait the adds to leave middle safe from cleaves.
If a pair has same safespots Melee and Healer swap.