Two skills I'd like for WHM:

Afflatus Solace: Potency increase for the entire party. % increase varies based on amount healed since the skill was last used (overheals do not count, counter reset on changing areas as well)

Afflatus Misery: Vulnerability Down for entire party. % varies based on damage dealt since the skill was last used (counter resets on changing areas)

At the moment, WHM lacks any ways to increase the speed with which content is done outside of dealing damage themselves (Unlike SCH's minor speed increase and AST's cards). In addition, being the class that learns Cleric's Stance and the theme of the CNJ questlines does give the impression of WHM striking a balance between offense and defense.

The names were taken from a pair of similar skills in FFXI (in that they built up a counter to power up moves), though of course modified to better fit FFXIV's playstyle.