It's a bit confusing... how about these pairs:
Dry Bones & Wario vs Toadworth
Boo & Fawful vs Goomboss (He was unaffected by the blast that reversed everyone's intentions)
Bowser & Lemmy (I'll join if I have to) vs Ketsueki (A master swordsman. He is not Ketsueki Mario... Ketsueki's just a cool name)
Roy vs Baby Yoshi
All of the enemies, except for Baby Yoshi, have 30HP. Baby Yoshi has 15HP.
Attacks:
Toadsworth: Super Spore (Summons mini-Toads), Stun Spore
Goomboss: Charge Goomba Fury
Ketsueki: Strike, Super Jump
Baby Yoshi: Eat, Hip Drop
Do you think this is a good idea?