The wave bounce
A crashed wave comes back to your side.

« Eureka, the boomerang wave! Crash it into their tower, back, and it comes home to you while you're shopping. »
- Crash your wave
Your wave crashes into their tower. The tower starts killing your minions, one by one.
- Their next wave wins
Their tower cleans up, and their next wave meets yours near their side, bigger. You use that time to back.
- The wave bounces back
Their bigger wave wins and walks back toward your tower: that's the bounce.
- You farm at home
You're back just as it reaches your tower: you farm safely, and he has to walk far from his tower to farm.
- The classic mistake
You crash, then stay in front of their tower: the wave goes back to your side without you. Your tower eats the gold, and you're exposed.
When to do it
- Right after a crash: the wave is going to come back to you, so it's the moment to back.
- You want to farm safely: the bounce brings the wave to your tower, where a gank is harder.
- You want to freeze: a bounce that reaches your tower is the easiest way to set one up.
How to keep it
- Crash your wave into their tower, then leave: their tower does the rest.
- Back during the bounce: the wave takes time to walk back, and that's your window.
- Come back as it reaches your side: last hit near your tower, or hold it there with a freeze.
The tip for your rank
Crash, then back: that's the whole trick. When you return, the wave is on its way to you.
Use the bounce to set up a freeze: when the wave comes back to your tower, only take the last hits.
Chain crash, bounce and freeze: you back for free, your opponent has to walk far to farm, and your jungler knows exactly where to find him.