'What If?' Two

By now, everbody can tell what's happening with Warcraft lore about Arthas, the Lich King. But... What if Muradin got Frostmourne? What if the Scourge attacked the Dwarves before they went after Lordaeron?

If Muradin got Froustmourne, which would never happen, he would probably become controlled by it easily. He would probably in the end become a Death Knight like Arthas, perhaps just somewhat weaker, but still very strong.

I know that much, but what would happen then? Would he be the one to bring down Terenas and Lordaeron? Would Arthas be in his way? Would Magni and Brahn both have to fight him?

Look past the obvious first bits at Northrend, man.

I think at some point, Arthas would kill Muradin and claim Frostmourne anyways.
However, this is after all a "What If" so, once Arthas reached the shores of Northrend, he would probably find that Muradin was already fighting the Undead with all the strength of his newly acquired blade. Afterwards he along Arthas had defeated the Undead, Muradin would probably vanish much like Arthas did after he killed Mal'Ganis. Corrupted by the blade, Muradin would return to Ironforge, an honorable welcome awaited him, but he moved simply into the throneroom, thrusting Magni in his chest, thus the threat of the Dwarves would be over for the Lich King.

After this, Muradin would probably follow the story Arthas followed in RoC, as he would first be visited by Tichondrius and do his bidding. Though, since the nation of Lordaeron still has their king and Lightbringer, they would perhaps once more be able to counter the Scourge of Lordaeron. It is hard to know, but if Lordaeron fell once more, perhaps Muradin would be the one who would "lure" Illidan into claiming the Skull of Gul'Dan, perhaps it is he who will become One with the Lich King.

Muradin would have been clever enough to beat the crap out of the sword and anyone who tried to get near it. Sadly, Arthas was faster.

This is about What If's, so what if it was made for Muradin?

Dwarfs are not as easy as corrupt as humans. I stay within my position.

You're a horrible person.

Maybe.

But what kind of mount he got then? A goat?

So an evil undead Dwarf with a big sword thats overrigged plus very big that hops over the yellow brick road on a goat?

That'd actually be kind've cool.