hi im a gold IV player at the moment my name is mitnavnerboXD. i have ben playing tahm kench a lot since mid season 5 where i was silver 5. this boyz carried me to gold lll at the time. i had 47 games with tahm kench almost all jungle. i have about 60% winrate on him i think, that concidering that i have ben testing a lot of builds out and lost a couple games with him because of that. This is not a trollbuild, i encourage you to try this out. i was really surprised how op it actually was when i first tryed it. with no furtherer do heres my match history and a link to my profile if u want to see.

http://eune.op.gg/summoner/userName=mitnavnerboXD

gromp(smite) - blue(ward on other side of wall in case of counterjungling such as shaco)(1 stack of you health pot thing will be needed) - crab - wolfes(smite)(pot) - crab - red or birds(smite)(ward red bush) - back

The reason why you should take crab is that you deal half its hp by pressing w and you dont have any trouble catching up with ti because of you q + it gives you a nice amount of health to keep farming. instead of taking birds or red you could do a gank in case you are not too low on health.

the keystone is really the best you can take for tahm, i have tryed many others but this seems to work the best. and the rest is just needed.

attack speed, health/arm, scaling mr, attack speed.

you can go attack speed, health/arm, scaling mr, movement speed
or attack speed, health/arm, scaling mr, health/armor
if you want to, but i reccomend: attack speed, health/arm, scaling mr, attack speed.

thanks for viewing my guide i hope that you will enjoy this build as much as i have, i wish you good luck.