Ah yes, the bQ is what I meant.

And yes, should fix the gender.

Thanks.

I would just recommend some cleanup here and there. Such as things like:

"Rek'Sai is an Attack Damage jungler. His uQ scales nicely as a long-range Nidalee-type poke, but is AP scaled, so we won't rely on this for damage."

Rek'Sai is a she, not a he, and her uQ scales with AD, not AP. It's her bQ that scales off of AP and reveals enemy champions. I know this is nitpicking and I highly doubt this is news to you but when a player reads 'his' instead of 'her' sometimes they might wonder about the integrity of the guide. And while most could figure out that the bQ is what reveals enemy players somebody fairly new to Rek'Sai might not and be totally lost for a moment.

Overall I enjoyed the guide. Keep up the good work!

I recommend re-ordering your chapters. Runes and Pros/Cons usually should be among the first. Masteries can be self-explanatory, but please do leave something within the notes.

Explain some of the item choices within a chapter. Specifically why you would pick Sabre over other options.

I really like your Tunnels chapter.