This is connected to my Dexter's lab swap since they take place in the same universe, and they're now called the razorrouge girls and the perfectplus boys.
I will make the other swaps next.
Belphie is the opposite of bubbles so she's cold mean and mostly takes charge of the group, but because she's the opposite she's actually quite the coward and would rather stay in the shadows than to be in the frontlines, she uses her doll to transfer pain onto others.
Banshee is the opposite of blossom, so instead of the smart leader, she's deranged and unpredictable, despite this she's still the leader due to her strength but she is restrained because she could even attack her own sisters. She can shoot lightning out of her mouth.
Benign is the opposite of buttercup. Instead of being brash and a tomboy, she is gentle and feminine. But don't be fooled by her, she is the cruelest and smartest one out of her sisters, she plans to one day take proffersor uraniums place as the ruler of this dystopian world. Her powers is mind control.
Believe is the opposite of boomer. Believe is a downer and is usually by himself instead of with his brothers, he believes that he is smarter and better than them and does not trust bests leadership role. He can use telepathy to communicate with others.
Best is the opposite of brick. He is optimistic and cheery and loves his brothers very much, but they all doubt him, the doubt makes him feel inferior and he feels very self conscious about his role as leader, but he always tries his best and doesn't let his fear show, not wanting to appear weak in front of anyone. Best can teleport anywhere he wants.
Brave is the opposite of butch. He usually spaces out and does his own thing. Brave is actually the smartest out of his brothers but doesn't show it because he doesn't want to. He doesn't agree with either believe or best about who should be leader because he thinks both are incompetent. He can manipulate matter.