Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
My opinions , when playing cho as a tank:
i'd suggest Flash + Ghost
also warmog's is a matter of opinion .. alot of the people i know agree that Warmog's is just wasted on Cho because he gets enough hp from his feasts. as such i find the best item to go for at start is Doran's Shield, its a solid tanking item on any character.
in general its better to go for the resistances over hp up until about 150 -> 200.
FIRST BUY: Doran's Shield + 1 Hp pot
NEXT BUY: Mercury's Treads, (EVERY TIME, if you dont get them you'll regret it)
THEN: Aegis of The Legion (unless your against like 4 AD champs or 4 AP champs , in which case skip)
The following are the items you want to be getting to adress specific damage types (further to the top = better):
Randuins Omen (or if theres alot of enemy melee champs go for frozen heart)
Sunfire Cape (First)
Sunfire Cape (Second)
Force of Nature (always get the negatron cape first, not the hp regen items)
Exceptions: if you see a Void Staff or Last Whisper on the enemy champs then you dont need to keep buffing your resist, get it to about 150 then work on HP, also if you see a Lich Bane or a Madred's Bloodrazor plan to counter these (magic res vs madred's , armor vs lich bane)
HP Glyphs ,
Magic Pen Reds
Magic Resist Blue's
just my personal opinion here anyway :)
i know people want a versatile build but he's chogath .. he rapes most dps champs with great ease :S , throw in a Deathfire (vs AD stacked teams) or an (Abyssal Scepter) vs AP stacked teams instead of a tank item and you can pretty much kill any dps in 1 v 1. (Rupture -> Deathfire -> Silence -> Autoattacks-> Feast) pretty much instagibs at level 18 you could deathfire at start but only if you have a large speed advantage and they have no way of escaping.