It's actually super fast to proc PTA with Zeri since you can queue an aa between two Qs, so you can deal a lot of damage really fast and surprise the opponent with a burst of damage.

What you want to do is to Q - aa during the cd - Q again. The hard part of this build is to keep moving while doing so, as it depends a lot on your positioning and mobility while queueing aas into Qs.

That's why when paired with a support able to lock down an opponent she really shines, being able to burst it down really fast and gaining advantage pretty quickly.

This is a build that we found out to be solid and with a lot of sustainability and damage especially into the late game, have fun if you decide to try it!