I think there's a reason most combo point displays I see in screenshots are still just big yellow blobs. Cognitive Science pretty much states, that any number below 6 (1-5) is best displayed with a countable number of simple shapes. I intend to keep that theme with Holy Power and Soul Shards for me, just big colored balls somewhere I can see 'em.
If that's not fancy enough, 1-x icons do the trick, too, I guess
