Reasonable Zac Buff Ideas from 1 Million OTP

First of all you need to fix the bug that Zac's passive is smite-able with unupgraded smite.

Now onto the balancing ideas:

1- Change E knockback duration from 0.5~1s to 1s without needing to fully charge it.

Reason: The more Zac upgrades his E, the harder its CC last to the full duration due to charging time increasing per level, Zac get punished whether he maxes E or not. Zac is a tank and tanks are suppose to sit in the middle of a teamfight and chain CC.

2- Revert W AP nerf (2% HP per 100 AP) or buff it somehow, especially at level 1

Reason: With the buff to Q, maxing Q second is now the optimal choice for CD and base damage, so his W deals only 4% health dmg for the first +20 minutes, which is VERY bad to clear jungle with or even minions; whose health increase over time. The recent jungle nerfs just made it MORE worse for Zac to farm.

3- Buff base armor. According to wikipeda; after the rework, Zac's class has changed from Juggernaut to Vanguard, but why does he still have less 37.5 max base armor than Pyke; an assassin with better sustain and mobility!? aren't they both basically supports with ranged pull and gab closer?

Please notice Zac, thank you.