Noob Rek' sai tips?

I just wrote this guide: http://boards.na.leagueoflegends.com/en/c/tips-tricks/6Bkkk1yF-my-reksai-guide

thanks i'll check it out.

Rek'Sai has relatively low damage and poor burst early on, so you'll usually want to run Rek when you have high damage lanes who just need your utility. Once you hit 6, her ultimate passively gives her AS and she starts getting decent damage with her Q & E when knocking someone up.

Use your tunnels frequently throughout the jungle; you can use your ult in mid game to quickly get to buffs and camps when you recall to lower your 'away' time.

Be careful when using her Tunnel to engage, especially if you enter the lane first and the enemy can see you. Once you start her Tunnel she moves in a straight and predictable line, so a fast enemy will be able to move around you and you won't be able to change course.

Remember that you stay in whichever form (Burrowed / Unburrowed) as you enter when you exit a Tunnel. So if you want to exit burrowed (to fire off a Q or get a knockup) you want to Burrow prior to entering the tunnel.