Nice build man! The only feedback I can give is that you should edit the first back items to make them a tad more realistic and affordable, otherwise, great build bro!

I don't think match up should put it in the first few section :/

Well as usual you would want to start E then Q to start with minimal harrass and stiil have the potential to unleash the power of double or triple Q. Although after E, Q you will want to max W in an even lane to out sustain and when entering a one vs one you will use your W to reduce their damage potential because it scales 15 / 22 / 29 / 36 / 43 temporary magic resist and armor making you unkillable in trades.

My question was more about why you recommend to max W in an even lane.

Thank you emoriam, I will add that later :D Maxing W as tank Rengar is beneficial so that once you use empowered roar you can heal for more health, as well as even at level one your battle roar temporarily gains 15 armor and magic resist and it increases per level making you have a temporarilt tankier one vs one :D.

Write about your item choices and explain different building paths, talk about Gameplay and ability usage and you'll be fine! Brief question by a Rengar Noob: Why would you consider maxing Battle Roar in an even lane. I've heard about maxing this ability when playing "Tank- Rengar" so I'mm not in shot.

By the way, Rengar is a lion, not a cat. Or so, they say!