Mimic Ball is Bad.
there's no doubt that mimic ball is beloved by most people but I wanted to go over why mimic ball is the worst move/chip in this game.
Mimic ball will mimic the last move you use, it sounds good on paper because that would mean you would be doubling your move usage which means you would be doing double damage, However, everytime mimic ball mimics something it does an animation that makes the game stop until it is finished before you can use another character or switch parties, basically, mimic ball halves your speed which makes it pointless, you would be wasting a move or a chip slot for something that does nothing.
Now if that was the only thing it wouldn't be that bad (actually it would) but it gets worse, Since mimic ball slows you down this means it takes longer to cycle through your characters, so if you have only 1 gift boxer or 1 character that can deal with the rainbows, mimic ball will make it take longer for you to use that character again, if you don't have mimic ball you can use moves like gift boxes more frenquently which is way safer. (for the video attached to this post, it took me some attempts to beat CMR with mimic ball because of this reason, i had to swap nightmarionne and scott because i couldn't use bubble breath on time, but i did the "no mimic ball" one first try.)
Also, let's not forget moves that Mimic ball will try to mimic but does nothing (Hot cheese, endo army, Buffs, debuffs, mega virus) when it mimics these moves it will literally only slow you down with the animation.
This is why i mean it's the worst move, Speed is the most important thing in this game, i much rather use party favors which will do nothing than to use mimic ball which will downgrade my party.