I think it'd be neat to see a set of utility spells/enchantments that have a scaling effect.

For example:

--Figure takes 1 damage "per each domain required to cast" (PEDRTC)
--Figure gains 1 attack PEDRTC
--Figure gains 2 sight PEDRTC
--Figure gains 1 movement PEDRTC
--Figure gains 1 maximum health PEDRTC
--Creature gains 1 ranged attack PEDRTC
--Pay 2 flux PEDRTC to destroy target creature
--Figure does not undim for 2*(PEDRTC) rounds
--Figure undims once PEDRTC this round
--Sacrifice target creature to gain 1 flux and draw one card PEDRTC

etc. etc. etc.

per domain required to cast that spell or the target? It may be easier/better to work it based on the domain you have at time of casting [maybe even counting all of the domain, not capping at three per domain type... ]