Im gonna be very honest. This seems like a terrible idea. If I see someone in bronzium or carbonite, with tons of these delta relics. And theyre going up against people 10x less their size. I will just quit the game. You're actively punishing people who are starting off the game by this mechanic. The early matches of Grand Arena are already extremely bad and unfun because some whales dont get moved up.
People all around are complaining about stuff like that, and youre adding what? Something to make the game even more unfair? And that while not consulting the real playerbase. I dont know what playertesters you have gotten, but I sincerely hope that those players arent all youtubers and the top players in kyber, because they are not the majority of the playerbase. Also making the pve stuff harder at lower relics? Seriously? Why cant things just stay the way it is. This is just clearly nothing more than an active attempt to get people to pay money, and its so incredibly obvious.
Even the PVE aspect of the game is becoming harsher towards newerplayers. I really hope that assaultbattles and other aspects remain the same, as those are already simmable for the higher players, and they will never have to go through it. For once, think of your playerbase and actively converse with them, maybe then the newer players wouldnt be punished each time.