Jon Snow might be a strong contender. He has come back from the dead in Game of Thrones, which could give him an edge in Mortal Kombat. His Valyrian steel sword, Longclaw, can defeat the undead in his own world, and it could be very effective against Mortal Kombat foes. Also, his leadership skills and experience in battles could make him a force to be reckoned with in the crossover.
Sauron from Mortal Kombat could be extremely powerful in this crossover. He has powerful magic and is a very intimidating figure. In a world where the rules of both universes apply, his ability to control and manipulate could be a huge threat. He could easily turn some of the Game of Thrones characters against each other with his mind - control powers, and his physical strength in combat is also very high.
It could be Arya Stark. In Game of Thrones, she has proven to be a highly skilled assassin. In a Mortal Kombat crossover, her ability to change faces and sneak up on her enemies would be a great advantage. She could use her Needle sword and her skills learned from the Faceless Men to take on opponents. And her list of names of those she wants to kill could easily be added to with Mortal Kombat villains.
One way to combine Mortal Kombat and Game of Thrones in fanfiction could be through character crossovers. For example, imagine a scenario where Jon Snow has to face off against Scorpion in a battle. The harsh, wintry landscapes of Westeros could serve as a backdrop for Mortal Kombat - style duels. Another aspect could be the integration of the power systems. In Game of Thrones, there are different forms of magic like that of the Red Priests. In Mortal Kombat, there are the special moves and powers of the fighters. Fanfiction could explore how a character from Game of Thrones might adapt to or use the powers and fighting styles of Mortal Kombat.
It could be Akuma. His Satsui no Hado gives him incredible power and his fighting skills are top - notch. In a crossover, he could easily adapt to the Mortal Kombat's more brutal fighting style and use his dark powers to overpower many opponents.
One possible plot could be that characters from Game of Thrones are transported to the Mortal Kombat realm. For example, Jon Snow could find himself in a Mortal Kombat tournament. He would have to use his sword - fighting skills learned in Westeros against the likes of Scorpion or Sub - Zero. His Stark - like sense of honor might conflict with the brutal rules of Mortal Kombat.
The use of magic and supernatural elements. In Game of Thrones, we have things like the White Walkers and dragon magic. In Mortal Kombat, there are things like the Elder Gods and their magic. Fanfiction can explore how the magic from both universes could interact. Maybe the dragons in Game of Thrones could be used in Mortal Kombat - style battles, or the Elder Gods could have some influence on the events in Westeros. It opens up a whole new realm of possibilities for the story.
It's really hard to say for sure. Shao Kahn from Mortal Kombat is extremely powerful with his brute strength and magical abilities. But then you have characters like M. Bison from Street Fighter who has powerful psychic powers. If we consider a crossover, it might depend on the rules of the world they are in. In a world more based on Mortal Kombat's rules, Shao Kahn might have the edge, but in a more Street Fighter - like setting, M. Bison could be more dominant.
It could be the Scarlet Witch. Her reality - warping powers are off the charts. In a Game of Thrones setting, she could literally change the landscape, turn armies against each other, or even create illusions on a massive scale. She could make a whole castle disappear or make an army think they are being attacked by dragons when there are none. Her powers are not bound by the rules of Westeros' magic, so she could be extremely dangerous and powerful.
The plot of such fanfiction might revolve around a tournament. Imagine the Predator being invited or lured into the Mortal Kombat tournament. The other Mortal Kombat fighters would initially be confused by this new and strange opponent. But as the battles progress, they would learn to adapt to the Predator's hunting tactics. This could lead to some great character development as they face this extraterrestrial threat.
In Mortal Kombat 11 crossover fanfiction, some of the most popular crossover characters are from other fighting games like Street Fighter. For example, Ryu. His unique fighting style and the contrast between his more disciplined and honorable approach compared to Mortal Kombat's often brutal and underhanded tactics make for interesting fanfic scenarios. Another popular one could be characters from DC Comics if there's a crossover in that regard. Superman or Batman can bring a whole new dynamic to the Mortal Kombat universe with their superpowers and detective skills respectively.
In a Mortal Kombat crossover fanfiction, Reptile can add a lot of depth. He's a complex character with his own motives. In the crossover, he could be on a quest to find something that was lost in the merging of the two universes. His appearance might be different too, adapting to the new environment. He could start off as an antagonist, but as the story progresses, find common ground with the other characters. His fighting style could evolve as he learns new moves from the crossover characters, making him even more formidable in battles.
Well, Raiden from Mortal Kombat might be a strong contender. He is a thunder god with incredible powers. In a crossover with Harry Potter, his ability to control lightning could give him an edge. He could use his powers to disrupt the magic of wizards or directly attack them. And his immortality would make him a difficult opponent to defeat, even against the most powerful wizards.