Hmm, seems like y'all are giving my boi trouble.
Regarding plot manipulation, it is limited to only what it has been shown to do. Doesn't matter if Saiki wrote his story, his plot manipulation will be limited to things that happens in the story and cannot go above that.
Now, voting Anos because;
- This is an AP stomp, one love tap and Saiki is dead.
- He speed blitzes. Anos passively gets stronger and faster.
- Range: The 1000km range means nothing. Anos instantly burned down his entire Country (Dilhade). The capital of said country has a calculated size of over 2000km. <Ygg neas> transcends space and gives the user the entire universe in the palm of their hand so as soon as the fight starts Saiki is already in Anos grasp so is his concept.
- Saiki's telepathy, BFR is useless. Anti-magic prevents mind reading and can be used to block telepathy.
- Power null: His eyes power null were being downplayed because it's limited to sight. Anos eyes can easily see something as small as a human from 10km away and he can still magnify his vision on a scale of 1:1e+9.
- Saiki does not resist any of his abilities as they're too layered. The fire manipulation for example, <Gresde> the 3rd ranked fire spell can instantly melt steel, <Griad> is hotter than that, <Jio Graze> is a miniature sun that can vaporize everything it touches.
- Danmaku: I've already mentioned his range. Anos can rain attacks on him from any distance, can summon humdreds of several kilometer wide meteors to fall on him, if I jump all the way to Vol. 8, he could smack him with a planet sized castle.
- Powernull again: The eyes of destruction are capable of nullifying the effects of attacks used on him
- Passives: Saiki gets hit with fear manipulation that works on those with immunity, sleep manipulation & death manipulation just by sensing Anos presence
- Reactive Evolution: Though his profile says the same ability won't work on him twice, Anos also says it doesn't mean it will work the first time either so instant adaptation
- Intelligence: This man will whip out any new spell from further on in his story if he damn well pleases.
There might still be more, if you doubt anything I said then just ask for scans.