just a dumb question

I was watching warhammer40k lor videos on YouTube and got me thinking,what if I did another series after I finish one of the other 5,but the mc is not dead but he walks out of his door and into a void where the god emperor meets him,and then he wakes up in yugioh with a warhammer40k deck?

Just imagine him having a catachan deck and his ace is just sly marbo,and his speaking lines are just "AAAAAAAAAAAAAAAAAAAAA"

I had a laugh just thinking about it,but what are your thoughts on this idea?