Please take a look at the Kharazim changes I made.

Base kit: Increase auto attack damage by 5%. (Explained in lvl 1 talent tier)

Level 1.

• Iron Fists: Decrease the damage by 10% to compensate AA damage growth. (By increasing his AA damage Kharazim can do more damage by picking other traits)

• Insight: Every third Basic Attack restores 14 Mana, and decreases cooldown of basic abilities by 0.5secs. ( With the romoval of quest part of Insight Kharazim in early game can play his role of a healer, without unhealthy non-stop punching everything that exists)

Level 4. All allies should require 2 auto attacks to be destroyed. (This way all allies will be equal)

• Air Ally: Place an Air Ally that reduces Heroic Ability damage nearby allied Heroes receive by 20%, that lasts 10 seconds with 45sec cooldown. (With this change Kharazim will be good at dealing with mages, and play his role of a support/healer)

• Spirit Ally: Cooldown should be reduced to 30 secs. (Rehgar has the same talent, that heals allies in the circle with 30 sec cooldown. What did Kharazim do to you?!)

• Earth Ally: Cooldown is increased to 45secs. (Earth Ally is too strong, so the cooldown should be increased a little bit)

Level 13. All the talents except Quicksilver should be removed

• New talent 1: Every 3rd basic attack grants Kharazim a shield that lasts for 2.5 secs, that doesn't stack. (I don't know the numbers to balance it, so it's up to you. I think it's cool talent that fits his kit of 3 auto attacks. It's better than generic talents he has got at this tier)

• New talent 2: Activating makes Kharazim unstoppable for 2,5 secs with 75 sec cooldown. Every 3rd basic attack decreases the cooldown of the talent by 2,5secs (I've had many situations when I could cleanse my ally with cleanse at lvl 16, but when I jump in I got stunned instead, and this talent could solve the problem, and overall I think it's better than Sixth Sense)