- Zeri's level 1 is actually very strong. Your autoattack does around 120 damage at level 1, and combined with electrocute and 2 Q's you should be able to chunk someone pretty good.

- Level 2, though, is when you tell your support to go in. Try not to hit any minions, and your two slows will be enough to kill the enemy.

- Level 3, you're still strong but you don't have just straight up more damage than all the other botlaners at this point, so don't do anything crazy.

- By level 6, if you have some components and your ult you should be able to oneshot people somewhat effectively. E over a wall, W-Q-AA-R and they should be dead. If not, no biggie, your autos still do relatively good damage and the on-hit you get from your ult can help you finish the job.

- Use your autoattacks to farm! Against low health minions, they execute, which allows you to get CS you otherwise shouldn't have. Don't blow your empowered auto on them, though, use that for poke.

- By the time you're level 8-10 and have Lichbane, the enemy team should start actually taking you seriously. Save your E to get out of trouble and instead use your W to "Fish" for oneshots. If you hit it through a wall, E over and collect your 300g.

- The combo at this point is:

W-E-Q-AA-Q-R

- Farming is important here. If you fall behind, your damage will plummet. If AP Zeri can't 100-0 anyone within 5 seconds, she's probably already dead due to her Auto's recharge time and her long cooldowns.