Hopefully nobody thought of this but if anyone is familiar with Dota's ability draft, then you know where I'm gonna go with this. Basically I think there should be a gamemode where you and the opponent get picked a random character from the MKX roster. From here a pool of random special moves will be made for you and your opponent to choose. I think you should be able to choose 4.

For example: I get picked Kitana and I get to choose from Scorpion's spear, Sub-zero's ice ball, etc

By the way, you and your opponent take turns, and whoever goes first is random. But yea just an idea.

tl;dr: Dota 2 ability draft inspiration into MKX.