Test wap is spot on, it works like this.
Also if you use teams from the anime/manga, they gonna usually work good together,
with decent amount of combos.

Example Team 7, Naruto/Sasuke/Sakura/Kakashi/Sai, well now u can only have 3 chars with ur prota, but in some other systems, you don't need your prota/class, so you c*e 4 other chars.

Team 10, with Ino-Chika-Cho trio + /Asuma is really good combined, they don't have super high dmg,
but they have a lot of CC.
Example: Choji slams down the target > Shikamaru binds the target > Ino confuse the target,
like pokemon, so the confused target gonna hit a other ally, on the enemy team.