How long until people realize that Zac is OP?

Not overpowered, strong maybe, capable maybe, sustainable maybe, but not overpowered, i kill more Zac's than i can count and they do the same to me, its the circle of life [zombie-brand-mindblown]

When somebody plays him in a professional game.

Alternatively, when he hits the front page of champion.gg for win rate or pick rate (since that seems to be all that people look at).

People will realize it in 3 patches once he's buffed.

Zac's not OP. Strong, yes, but not OP.

Third option: Your opponents suck.

People don't understand this is a thing with Undying Grasp. Any champion right now that doesn't use mana or energy, but use a portion of their HP for their attacks are OP right now. This is a big reason why Mundo is top ban. Zac and Vald are also very OP right if played right. I think Zac just isn't banned because a lot of people don't play him plus he's a 6k IP champ.

Using Undying Grasp on them literally doesn't take any of your HP away, but instead gives you HP with them for attacking. Plus with Zac you can even pick up your blobs. If you go for a HP build on them it's a bit ridiculous mid to late game even though that mastery is a little lackluster early game.

3 days? idk