Tahm kench has 280 base damage, 70% slow on a 4 second cooldown.
How the fuck is that even fair? Tahm kench auto wins every melee matchup just by spamming q on cooldown because of how overstat it is. Dodge it? Doesn't matter it's up again before you could get a 2nd cs. Try to fight him? He just auto you 3 times, eat you, and throw you far away and you taking % max hp damage. So if you are against this guy in top lane, you are 100% reliant on your team because you can't do SHIT. You have to hope your adc is decent enough to take him down when the game goes past 25-30 minutes. This is the 4th patch he is doing this and there are no changes on the pbe. Riot doesn't have a single top lane player on their balance, so they don't know how unfun it is to play melee top against tahm top. Yhis is even worse than playing against ranged champions, at least you can have them push and call your jungler for a gank, and snowball if you get a lead.
(laughs in reflection)
is god top especially against tahm.
start E. harass him from behind minions.
when lvl 2 get q and aa ee him he should either be forced to back or use a potion if he hadn't used one before
lvl 3 same combo but this time you should kill him due to the w passive.
does depend on runes though i will admit
2 rune trees can work against him
resolve After shock shield bash bone plating and overgrowth
Domination Sudden impact
ravenous hunter offense Flex defense
Some explanations
Aftershock= Her q procs this not only magic resist and it will do damage
Shield bash=her passive when you hit an enemy with an ability she procs a shield so shield passive she has is even stronger and it does more damage
bone plating defense
overgrowth not much else
shits on Tahm pretty hard. Just pop your turrets down and go make a sandwich.
is also a pretty decent counter to Tahm.
on
is pretty effective against
just better hope Kench doesn't rush 
bUIlD sHIts oN tAHm KenCH, lIKe, oNe tIMe ouT oF 20. LMAO eAT shIT ScrUB tAHM IS bWAlinCED, CAN't bENcH tHe KenCH r%%%%% lOl