Some buffs that Cho'gath should have
Cho'gath's kit is fine and healthy like sion, both have a lot of counterplay and counterbuilding. that being said few things prevent cho'gath to work at his best
Rupture mana cost 90------->70/75/80/85/90 Range 950-->1050 damage 80/135/190/245/305(+1.0 AP) lowered to X damage slow duration increased from 1.5 to 1.75 seconds knowk up duration increased from 1 to 1.25 seconds slow % increased from 60% to 60/65/70/75/80%
90 mana for a telegraphed spell just doesn't make sens, the other changes shift Rupture from a burst tool, to an utility/protection tool
vorpal spikes: now is always activated against champions toggle disables vorpal spikes against minions damage changed to physical damage damage number changed to compensate the change of type of damage
Now with this cho might ends up broken because you buffed him a lot in the past, you might want to nerf him afterward