When I saw 'shikigami' and 'pokemon' the first thing that came to my mind was an old digimon-like anime called Onmyou Taisenki (it's not good though)
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Hell yeah! This looks awesome: https://youtu.be/tj87ojB4y3A
I should only hope that running this adventure would look even half as cool as this in mind.
Another mention of Shikigami in anime is Jujutsu Kaisen I believe. This guy had wolves and birds and such, it was pretty cool.