I mained chogath in season 4-5 wanna know why I stopped playing him ? Renekton ... just play Renekton. You have to be at least a bit adept to playing him tho its not free but you can easily win that lane 9/10 times with Renekton.
#1 you can dodge his pillar with your E - whenever he trys to land a blind pillar you can #1 E towards him if you know he doesnt have a gank coming and harass him - E away and safely walk away knowing his pillar is no on CD. Unless he silences you and then lands his Q without you still being able to dodge it he really wont hit you much and hes usually not willing to get in your range for silence because you can E towards him whenever you please. Even if he does silence you at this point you can simply dodge the Q and then stun and Q him and walk away.
#2 you can outsustain him after about lvl 4 and you can out trade out bully and our farm him from that point on. Basically once you hit about level 4 your able to outpush him with your Q while making him fear your E and stun. Just shove his lane to tower and roam even if its just to your tri bush to ward. He becomes afraid to walk too far from his tower without vision of you because he knows that your stronger than him and a gank could be lying in wait.
I dont really know what other advice to give you upon the matchup other than do not fight with him too much early wait till you scale because his void spikes and his passive. Void spikes deals ALOT of dmg early and is very deceptive and his passive allows him to sustain hence why once you hit 4 you need to being shoving waves with your Q while trading with him to apply pressure this way he will eventually not be able to heal all the dmg you deal and you will outsustain him. Forcing his backs and winning your lane by taking his tower.
If you ever want to practice the matchup feel free to add me and I will practice it and explain in better detail. Once you get used to it it becomes very difficult for any chogath to deal with you.
