For some reason I can't figure out what to build and stuff. Hes a really fun champion and mostly I have pool party so I can ride a jetski :D. But seriously, how do you build him and what jungle path do you use.
Spanked eGirl2 votesShe* and probably Warrior enchant with full tank following is your only shot right now. But its so easy to kite her
Restless Slumber2 votesCheck my runes and masteries here http://na.op.gg/summoner/userName=PuffyP I go warrior stalkers always, get lucidity boots and then go a tank item. If I'm ahead after that I go titanic, if not then go another tank item. The goal of Rek'Sai in this meta (in solo queue) is to be a beefcake bruiser that can one shot a squishy. I generally focus my time farming and counter jungling and will dedicate time to ganking when there is nothing to clear. The reason I use this playstyle on Rek'Sai is because of how fast she is at clearing and ability to react to situations anyways because of tunnels. If you check my stats as well my winrate is 62% in ranked with 39 games this season.
4th Chiming Lamb1 votesHes a really fun champion and mostly I have pool party so I can ride a jetski But seriously, how do you build him and what jungle path do you use.
SHE is a bruiser. I build her with Warrior and Cleaver as my core. After that, build either full tank or bruiser, NEVER full damage. I like to build her as somewhat of a cheesy Bruiser build (see below). If you can get ahead, either Hydra is a pretty big damage boost, though I don't get one that often.
My build for her is typically a "fuck you and your burst" build: 
? Build Rek'Sai the opposite you would him.EDIT: For the Jungle Path, I use one of these: Krugs (Smite) > Raptors > Brambleback (Smite) >Murk Wolves > Blue > Gromp (Smite) > Carry On (Personal Favorite) OR Gromp (Smite) > Wolves > Blue > Raptors > Red (Smite) > Gank Mid/Top > Krugs (Smite) > > Carry On (Don't really use often)
LegitBacon661 votesLol woops. Also kat is a her :P
Unfortunate Game1 votes 
, etc.
You can go Half damage, half tank (usually more fun), or you can go full tank.
I would suggest the warrior > titanic build, but if youre behind and you need your team to carry you, then go cinderhulk and be the tank peel of the team.
Austinodood1 votesyou play her on treeline
DREADN0UGHT1 votes
Rush cinder into tiamat, then just farm freely withouth having to buy any pots. Build accordingly. But this is the build I usually went for in most cases.