Can I relearn gen 4 event moves in gen 6?

Question

I made the stupid mistake a while back of transferring my ToysRUs event Arceus (Judgement, Shadow Force, Spacial Rend, Roar of time) to Pokémon Y, and I made it forget spacial rend and roar of time to try out a new move set. When I didn’t like it anymore, I went to the move relearner and found that roar of time and spacial rend couldn’t be relearned at all. This has bothered me for years that I did this. Is there any way at all to get these moves back? (Even if it involves hacking)

Answer 1

Hacking would be the only way to do that.

It's that simple. Nothing else to it. Whatever hacks you want to use, it has to be something of an illegitimate way to re-obtain them.