Hi this is my 1st guide .. i hope it will help master chogath one of the best (for me)solo top champions

PROS . CONS
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Good early game . You will have too many assists
Good mid game Not the best ap build but still you will have a lot of damage
Very good late game .
Good damage
good survivability .

for runes i choose strong durability such as flat magic resist glyphs flat armor seals flat
health marks and per level magic resist health ad armor quints
Other Alternatives
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if you want to be more aggresive and not so tank you can pick health marks armor seals magic resist glyphs ans ability power quints

My items have as goal to survive top lane without feeding and just wait for the jungler to gank .Also this items will help you guide your team through enemys and let them garb kills with you taking 0 damage from their carrys .In this build you can change abyssal scepter and instead of it buy rylais crystal scepter

Don't be very aggresive because you will have problem with mana so just stay at the middle of the lane and take last hit of the creeps
After you get rod of ages and rylais you will be able to kill creeps with just 1 rapture so after these 2 items rush to build warmongs so that you will kill creeps and gain bonus health from its passive.
With this build if you play smart you will be able to take some kills with rapture or feast
NEVER FORGET WARDING...
AND ALWAYS KEEP TRACK OF ENEMYS IF THEY BARON .. FEAST DOES 1000 DMG SMITE DOESNT DO OVER 750