A lower level Blood Lily spell (and system) - make it Aero III or something. I wouldn't mind if the lily spells where ogcd, but would prefer something to spend the lilies on when healing is not needed.

If not damage or a better debuff, maybe Fluid Aura could function like Thin Air, but only castable on party members. It could even share a cd with Thin Air. WHM's doesn't really have MP problems, might be nice to help others who do.

Might be silly, but could Asylum be made of water instead of light? Just to keep some of the elemental theme going.