[quote=@Italicized]
[@vancexentan]
Still poking around the water for potential can and can't do, so would a Guardian Spirit be okay in a master sheet? They wouldn't be able to easily manifest themselves (even for short periods) into material form, they'd just serve as a spiritual medium for my Master to base his magecraft around. 

This came from me planning on making an Eastern magus who focuses more on the spiritual side as they do. Just wanted to toss the idea forward and getting your thoughts before digging into it~
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[quote=@vancexentan]
It isn't in canon, to my limited knowledge, but if you can try to make it work I'll hear you out.
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Actually, it's in canon, but just something that a modern magus would have extreme difficult to do since you are basically trying to emulate how Geronimo works, if you go down this road.

Even with several nerfs, it may be something outside of the grasp of modern magecraft.

Edit: By the way, I've been taking a look at this and considering an idea. If I can get something done. I just wanted to point that missing detail while I was passing.