I believe it is 24 with upgraded Hope. 1+7+8+8=24
I know, but is it that important to point it out? The difference between 23 and 24 is trivial, and not many people upgrade Hope anyways. Adding it in will just clutter up that sentence.
Good work, but I don't think you should include Photon as synergy unless you include all non-skilled creatures.
The template requires me to list both the regular and upgraded version of the card. Maybe I could say "Ray of Light (upgraded only)" instead of "Photon | Ray of Light", or something like that.
You should make more mention of it being immaterial then a tiny notice in the quick facts section i think.
Do I really need to go into detail in explaining what Immaterial does? Also, other than in Quick Facts, I mentioned it in two more places.