Mortal Kombat 9-11 (2011) crossover.
Mortal Kombat 9, Mortal Kombat X, and Mortal Kombat 11 references.

In a few days, Twilight Sparkle will be crowned as the ruler of Equestria. Upon hearing this news, she feels anxious and nervous. However, unbeknownst to her, Grogar has escaped from his exile and is now seeking revenge against Equestria. His ultimate plan is to take over Equestria, and to achieve this, he sets out to form an alliance with Shao Kahn and his army in Outworld. Meanwhile, the heroes of Earthrealm become aware of the impending invasion and decide to intervene. The fate of both realms now hangs in the balance.

“Prepare yourselves, readers, because Equus will soon engage... in Mortal Kombat!”

P.S. I will give out choices that will change the story outcome. You will be forced to make bad choices during this story. The one with the most votes becomes the next chapter. Choose wisely because there will be no turning back!

Special Thanks to: JDPrime22