ehh u made some mistakes you can remove some thing from the 1.9 list
rods cause you done just those in pvp for 1.9+
snowballs
offhand/shield (no one is jusing the shield cause its unbalanced and trash with the use delay)
everything with the kb cause that removes the combo's (and i think you want to let the commbo's stay otherwise 1.9=100% trash)
and the things with 4versions cause that has nothing to do with pvp and are really good updates
Are you having auto-correct problems?
Rods are usable in 1.9+ for the pull function, or you can use the kb-rod plugin like 1.8- servers do.
Snowballs are still a thing in 1.9+
Offhand for other things is still very useful, and shield is only useless on Cubecraft because it's still on 1.9, before the shield buff in 1.11. Though I admit shield could still use some changes, it's certainly not a useless item.
Uh, no actually, the kb in 1.9+ being lessened allows you to extend combos longer because players won't spontaneously fly 5 blocks away from you.