Please say no to relics.
First, let me start off by saying that I really enjoy this game, and wish only the best for its future and development. That being said, the idea of relics frightens me to no end. The second I read about them in the newest dev diaries, it felt like the wind was taken out of my MCOC sails. I lost all drive to grind for units, do hard content, or even spend on this game. My desire to play this game has been reduced to the bare minimum after a year and a half of enjoyment. Let me explain.
MCOC is already terribly luck reliant. It can be hard to get a good champion, and even harder to get the specific one you want. Adding RNG based gear on top of that would only increase player frustration when opening loot. Also, I am afraid that this could cause 2 negative things regarding champion design. 1: new champions might be incredibly mediocre/only good with a specific piece of gear. This would take all the excitement out of pulling them, as you would only be halfway there, so to speak. 2: upcoming champion buffs might be centered around the ability to equip gear. This doesn't sound as fun to me as having a champion buff be really good on its own (i.e. Red Magneto).
Second, the MCOC community has said time and time again that they DO NOT WANT a gear system in this game. Most recently, we can see this with MROC. That games failure to attract a significant, active player base from the already existing group of MCOC players is proof. MCOC players decided that they prefer all champions to be equal (more or less) across everyones accounts. Also take in to consideration how many MCOC Youtubers advertise/do paid promotion stuff for RAID Shadow Legends. That game is synonymous with a "gear system". Then look at how many of those content creators also play the game and publish content for it. I can't think of any. They don't enjoy it, and they know their viewers wouldn't enjoy it either.
Finally, a relic/gear system would open up the door to min/max hell. This is a slippery slope, and has the potential to literally drive players nuts. Everyone wants to do the most possible damage, and one of the simple joys of MCOC as it stands is that doing so is a straightforward and enjoyable procedure. Adding gear would infinitely complicate this process, and frankly, my head already hurts just thinking it.
All in all, I REALLY enjoy this game, and want to see it succeed as much, if not more than KABAM does. This is as much our game as it is the devs, and we the players, have a right and a responsibility to speak up for what we do and don't want to see in this game. I know I'm not alone on this. Please don't let this go by unchallenged, and KABAM, please think good and hard about the type of game and player base you want to have.
P.S. - Maybe instead of gear, introduce new boosts! That could have a similar effect on certain gameplay experiences, without introducing the rabbit hole that is a gear system.