First of all

This is a fun made guide,so dont play it full serious,only with your friends. :)
The first thing you need to know,this guide only work if you play with a friend,and not with random players who dont know where to find a girlfriend,or they own *****.....:)
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RUNES

PTA is the new best rune for Renekton after the nerfs to Conqueror. PTA synergies well with Renekton's assassin style and early game trading. This doesn't give you the same team fight power, so you'll need to be more of a split pusher and only group when it's most ideal to do so. When fighting Conqueror using champs, use the nerf in your favor by forcing short fights that prevent them from maxing their stacks.
After the nerf, it's lost value to Renekton. He likes burst damage and Conqueror has been slowed down.But its still good in team fights,or longer fights,but i think u shouldnt pick this for first time.
Guardian rune is still good for beginners who want to try out this guide,or who just want to play a stronger pyke :), or if your adc always cry for support items,and runes.
Aftershock is still full support guide,but with a better damage,and lesser shield,this rune still working with DPS gear,but i recommend this with a Black Cleaver and after full support items.

THE GEAR

Black Cleaver is the most important item for you.

After that you can start to gear one more DPS item,like the Sterak

After you got the sterak,you can start to gear with support items,like

Knights vow

And Zeke

These 2 support item important for your adc,or if you have a hyper carry in your team like Yone,Yasuo,or Yi you can buy it for them to.Usually they cry for support items....

A basic list of champions put into tiers of how difficult they are to successfully tower dive on average. These obviously vary with skill level, items, level, and minion count,or how noob is your partner.
Easy because you one shot them

Average

Hard because they are gay or tanky

Impossible

Leona is the best pick against renekton if you play full serious,she can over CC you,in 2 second she can drop you 3 stun,you wont reach the enemy adc,and the enemy adc can trade you down,or if he/she strong can kill you intime,you should ban her 97% of time

If they pick Yuumi,you can book it for yourself you will be bored for the whole game,you wont reach the enemy adc intime,or you should buy , if they pick it,you should let your adc farm,and deffend him/her for the rest of the game,i recommend full support gear vs

xd just quit

Usually we finished the game before the 2th or 3th item

You Must Know This For Climb

This matchup is only working in early game i think,if your adc can be strong in late game its will work in late to,but i recommend to end the game in early at the first 20-30min..😌

Renekton is strong in early without items,because he have high AD stats,if you pick 2 AD rune,you have 80 basic AD without items at the start of the game at level 1,with the support item you will start with 83 Attack Damage.You can try out the full top laner gear,but i recommend the basic then the support items. Goodluck and have fun for the games! :)

Overnerfed 2021 :(

:(