[quote=@ZAVAZggg]
<Snipped quote by Letter Bee>

It could be, but what about him expressing his power through his blood and just using the items and whatnot to deceive others into thinking it's mystical?
[/quote]

That might work, but what would be the limits to said power, then? My thoughts were that my PC can make a wide range of effects happen, but the more powerful the effect, the more of his blood is needed. This allows my PC to heal, throw fireballs, and project his consciousness out of his body, but prevents him from destroying entire cities without killing himself or spending entire months stockpiling blood.