You will constantly have to change summons, when you unlock new champs or discover new builds or use different talents.
Essentially - if you don't need to chain any combos - chameleon is a good choice. with other summons you can come up with interesting new builds e.g. (if I remember the skills correctly) with your build - when you initiate with sui cause HF > LF (by guy) > Repulse (Sui) > KD (hinata) > KD (Hinata) > (you can have a summon that catches KD > Repulse) > Shark bomb talent on your main.

This is just a * example, which might work roughly that way, but I hope you get the point.