(Source)

All their forces fought....but there was no winner....only darkness...

Even though Tirek can absorb magic and Sombra has the powers of darkness on his side, I want to bet my money on Nightmare Moon. I thought her timeline was the most interesting

4893271 *Opens new Goggle Doc* Oh, don't mind me.

4893375 No, please... do go ahead...

4893406 What's wrong?

4893407 Check the link!

4893410 I did, but I don't know. You just seemed down.

4893412

I wasn't down, I just thought you'd be interested in the idea.

4893415 Well if you want to do it then you can. I was just joking. I've got a whole lot on my plate at the moment.

4893284 I'll just leave this here for you.

My thoughts exactly.

4893271
In my opinion, time destabilized by continuous use of time travel going the same distance from the same place, so on the final timeline, it had sent them 200 years into the future, and they were in the Fallout: Equestria timeline.