For statements I was thinking about the numerous times he's described as Gremlin's combat specialist/member in charge of direct comba and otherst:
(NT5)
"I suppose I should introduce myself as the Lightning God Thor. I am in charge of direct combat for Gremlin."
...
He was Thor.
He was referred to as the god of thunder, he was especially skilled in direct combat even for a member of Gremlin, and he was their representative combat member.
He had the destructive power needed to wage a war all on his own.
(NT6)
Ignoring the explosive noise of the air being roasted, Thor opened his mouth to speak. He had a look of disinterest on his face despite drawing out enough firepower to level a building just by waving his hand like he was shooing away an insect.
And this was just a fragment of his power.
This was nothing but an experiment to see just how far his power had been raised.
...
"Cut the crap, boy."
Silvia the Saint looked at Thor's right hand with a surprised expression. Arc fusion blades stretched over 20 meters from his five fingers. Even at that level, it was unclear just how powerful an Electromaster of the science side would be needed to duplicate it.
Yet a clear look of astonishment could be seen on Silvia's face.
Of all of Gremlin and all the Saints, she was the woman who was always standing closest to Ollerus. And yet this level of power was enough to make her look astonished.
She had that much power herself.
...
Basically, I want power. There is a limit to what you can obtain training on your own, but you start to find the opponents available to you growing very limited once you reach a certain level. …I can think of a few people who are stronger than me, but fighting them could easily end up destroying an entire city or an entire country. That would leave a bad taste in my mouth. It's been hard finding a way to meet the requirements for the next step.
(NT9)
"Try to be a little more imaginative." Thor shook his bloody right hand while smiling. "I'm known as an almighty god right now, y'know? If Othinus hadn't gouged out her eye, I'd be leading Gremlin. You need to widen your view if you want to talk about me."
I believe his biggest disadvantage during the fight with Silvia was not power but speed, which is the problem most magicians run into with Saints, as him giving his all to dodge her attacks and use his arc blades as boosters was straining his body's joints, since unlike Silvia's his body is the one of a completely normal human. While I agree that scaling him to Silvia might be a bit of a strecth, having him that much weaker than Silvia and Gremlin!Hel kind of bothers me a bit. I think he at least reaches Tier 7 with Mjolnir's support.
As I said, I'm not sure how to rate normal Thor since it's only normal arc blade feat it's easily slicing a win turbine into multiple pieces, but likely not weaker than Mikoto's iron sand. I'm also doubtful about Durability, since despite surviving Silvia crashing a section of the overpass road on top of him apparently unharmed, he stated that Touma could have hurt him with a gun since his body wasn't super durable and he did shoot himself. However, considering his obssession with combat and the fact the reason he shot himself in the first place was to make the battle more fair, he could have been willingly not using any magical defenses against Touma to make it more fair, just like the way he didn't use Almighthy Thor until the end of the fight.
