Pro
-Massive amounts of Aoe Damage
-Nice survivability
-Silence and pop up with dps= dead

Cons
-people take you as a tank
- no one takes you seriously
-uses alot of mana early game

The reason we want rupture first is because it keeps your opponents in the air, so they lose time to attack and at level one it can help you kill or run away. Vorpal spikes are important, because it allows you to push the lane really effectively and every mob you kill, Cho's passive gives you health, thus attacking more mobs=more dead mobs= health.

The attack speed and ability power helps you do massive vorpal spike damage. The Tiamat and Guisenos Rageblade and Hextech both increase Tiamat's effect of spreading damage. This allows cho to mainly deal huge amounts of damage in group fights with general survivability from his ult which also serves as a great nuke.

The ghost allows Cho to run and eat someone and exhaust helps him take out opponents that run and does more damage than him.

The reason the masteries are in made into tank is to give more survivability overall, especially in the laning phase.

To gank you always want to stay in bushes and use rupture to pop them up then exhaust and attack them. When they flash or run, use your ghost and chomp down on them to get the kill. In group fights you want to off tank for your team while doing damage and silencing and popping the opponents up. Overall this is a very easy build cho to play. Also never be too aggressive in laning unless they back away from minions, from your harassing and thus allow you to heal you health and mana. Tower dive only when you have around 3 or more stacks once you hit level 6 so you can survive the turret damage. In order to turret dive use exhaust and ghost them chomp down.