There's a ton of guys immune to combos. Some are even double immune.

Itachi Susanoo - Immune to combos and debuffs
Sasuke Susanoo - Immune to combos and ninjutsu
Madara - Immune to combos and taijutsu

Both Raikages are immune to combos, Gaara is immune to combos, Han is immune to combos, Kisame v2 is immune to combos, Kakazu v2 is immune to combos, ...

We can basically have almost a full ranked battle lineup that is IMMUNE TO COMBOS.