Eh... could use a bit of work.

You could place the explanation of what kinda dwarf Orgnar is in an authors note

Yes, this is the best displaced i have ever seen.

Ahahahahahahahahahahahahahhahahahahahahaha!!! I love it already!! The way he dealt with it!! All of it!!! Ooohhhhhooohohohoohoh!! This is gonna be fun!!!

NOW THAT'S THE DWARVEN WAY!!!!! Me friend, you now have my complete attention due to breathing life into one of my absolute favorite races and doing it right! I can't wait to see what you got for me.

It may be the dwarves way, but it’s too meta and the main character sounds too op. Sorry but I couldn’t get past the prologue. I know how it’ll be just from the Stu-ness this character is already oozing

8158987
2nd for me, first is form another story where the main char goes on a rant about how he hates displacement only at the end to turn around and ask which version of equss himself and two other will be going to

8565318
2nd here too,though I just finished the first chapter...still...first OC I read was The Muscle Wizard....funny as hell.wish it would update.

After reading this prologue, you need to go back and give your OC some actual flaws. As it is he's the very definition of a Gary Stu.

Yes. Many, many, yes.

With new resolve I walked over to the stand, giving him the cheery smile of a bearded stout bastard. “Hey there lad!” I call to him. “I see you found me ale mug, how much ta take it off ye hands?” The Merchant looks me over quizzically, and smiles. “Ah, welcome stranger, I fear I do not recall where I found this item, but if it’s yours, I’ll happily sell it to you for a discount… and what is your persona?” “Orgran.” I reply. “Orgran the Red, hailing from another realm!” my smile turns to one of cockiness. “But I think ye would know that, Displacer.” Immediately his eyes go wide, and he charges at me, again, not being stupid I hit him over the head with my hammer to deter him, it may be foam and cardboard, but a good swing can still have foam and cardboard dislodge a guy. “Relax ya moron I ain’t gonna tell! I just want to make something clear.” He gets up shakily. “And what, pray tell, is that?” “You’re a dumbass.” He cocks an eyebrow. “I assure you I have much experience-” “THAT MAKES IT WORSE!” I exclaim, him taken aback at the first one to not only figure him out, but be prepared to call him out on it. “Being in the same costume hundreds of stories put you in is one thing, but you have the perfect item for an OC, a fuckin’ OC, ya daft twat, d’ya realize how suspicious that is!?” he looks away nervously. “Just ‘ave some fuckin’ common sense next time so some other bastard doesn’t slap some into you again ye idiot!” I place the contents of my wallet, only cash, onto the stand “Keep the change, not like I’ll need it.” I pick up the mug, pop open the lid and make a drinking motion, the shock is what went down my throat was like a sweet nectar of an alcoholic beverage, causing me to black out.

Classic dwarf response.

and the second is immortality, a perfect excuse for how Dwarves can still keep a grudge with the Elves when simply generation after generation a normal aging species would eventually forget hating them in the first place.

It's because they hold tradition extremely close to heart. That's basic in dungeons and dragons lore, because it's a big deal in Tolkien's work as well.
The whole telluric magic was okay to look past, even though dwarves are often depicted as being magically resilient rather than adept, but the immortality bit was pretty bad.

In order to prove himself good at something, he made himself good at EVERYTHING!

Okay, now you're threading on thin ice. There's this thing called a Mary Sue, you ever heard of it?

Mm. Im Very intrigued.

I have many things to say about this story. One of them is best said by Ogran himself. (please tell me if I managed to get close to his character)

"What are you idiots talking about? This is meant be a comedy you twits. Get the polearm out your collective asses and just get some enjoyment.