As far as oGCD heals go whm doesn’t have the capabilities that other jobs do. We have Tetra with a single charge on a 1 minute cooldown, Assize which should be used on cooldown for damage and mp regain, benediction on a 3 minute cooldown, and asylum on a 90 second cooldown. WHM doesn’t have the oGCD staying power that sch does (lustrate, excog, soil, indom, the fairy and it’s skills are all ogcd) or ast (2 charges of Essential Dignity, celestial intersection, celestial opposition, collective unconscious, earthly star, and even lady of crowns again come endwalker). As a WHM you frequently have to rely on your cohealers oGCDs in order to avoid GCD healing yourself.