Well, the question is if it really was Alpharius in the first place But I like the way you put it. (I hope your "loyalist" wasn't adressing me though! ò.o *g*)
Aside from all the points raised prior, I've never seen any lore pointing to Malal having control over shadows of any kind. Where you can find mention of him it's all about him being a parasite and leeching off of the other gods or just straight up ruining their day.
