But Angra was a completely normal human, with curses drawn all over his body and forced to be "All The Evil In The World" to all the villagers, so they can go ahead and think "yeah well we're not evil now". All Angra can do is curse things, and that doesn't mean that Angra has an "Evil sense!" that tingles whenever something bad's about to go down, or that Angra would have an ability that let Angra appear at where it's going down just because.
I mean yeah Angra's mind is full of all the evils ever because they got pounded into Angra by the villagers and his life, but that doesn't mean that Angra governs and lords over them, and can tell when one's about to happen.
All of this stuff you're making Angra do contradicts the whole "normal human" and "weakest HS" thing Nasu has set in stone for Angra. Not being a servant would actually nerf Angra more than anything, because E in all stats is already more than a normal human can do. Hell, even being resurrected by the grail wouldn't power up Angra, just make the Angra immortal because lol third.
And why is Angra a girl? Being contrary to F/HA just because, or what? Because making this entire post gender neutral was annoying.
Arch cam down.