Heyo!

To be honest a summon in that team does add one or two more combo, because without it, the team is really great and it can make up to 7 or 8 combos without a summon xD Also, dog of hell is here an option, you c*e bull instead if you don't have it. In later game, trigger chases summons are the better options with that team of course. The same goes with the majority of the other teams. Naruto + Madara 5 kage mostly need the dog of hell in the team.

Definitely change your tactics, I'd suggest a sun move option, as majority of the current meta ninjas or almost all of them, are ninjutsu based. Sun move has that good of a structure, which will help your backline survive a bit longer at least.

Now, Gakido is really a great option with that chase that can increase CD of the opponent. I'd suggest you to run the dodge passive more than the chakra potion with that team. You could run Chiriku as well of course as it was stated above, even Kurenai, Tsunade fully skill broken or any other healing/supporting ninja. I'd really prefer the dodge passive always, since opponents will mostly go after her. I remember in space time, people using that dodge passive against me, she was dodging really the best times for them, for example when I tried to control her