ok, so this is my first build i have decided to come up with on my own, and it works for me. I have been using renekton for a little bit and every time it seems like i am either two tanky with not enough damage or too much damage but die very quickly. So this build sort of puts them together and....makes magic?

so first item is the boots of lucidity, to get the movement and to get the cooldown reduction for your q and w mainly. Next is sunfire cape, renekton is melee so the damage coming off of the sunfire cape along with the health it gives you is good for both some damage and health. Next will be the tiamat. Mainly because it give you 50 attack damage and because it gives you health regeneration. The brutalizer could come earlier, depending on how fast you want to get the cooldown lower. But the brutalizer gives more cooldown reduction and also more attack damage for you. Atma's Impaler is a good item to get here because it gives you armor along with even more health. Once again stressing the fact that you are suppose to be offensive with renekton but if you can stay alive, then its no good anyways. And last but not least, Infinity Edge, this also could come earlier but i feel getting the other items early game will help out with staying alive more over getting kills necessarily.All of these items lead to a good health and damage ratio.

first i tend to try to max out my q first just so i can farm alot easier and because it regains me some health back which is good for my laning in the start. Next you really want to max out your w, because by this point in the game, its perfect timing to get your w up and going and taking control of the fights you start. dont walk away the loser :(

we'll this was my first build that i really ended up feeling confident about. i was starting fights and getting easy triple kills becusae with my health i stayed a live and the damage still took out the oppenents. Hope this build works for you just as greatly as it has helped me :D