my point of view: don't quote me I may be wrong in which healing isn't my main line and my WHM is only LVL31. I don't believe their are any chains in that class/job. Your main focus is protect/healing. You have your option of course to cleric stance for more combat potency use of your aero and stone, along with your debuffing, etc.

I think cjn(whm), acn(smn,sch) and maybe thm(blm)---DOM. These don't have chains compared to DOW classes as I seem to see it. Chains as I assuming your referring to the combos with rotating dotted lines around the combat option.