Did I ever say I didn't?
I killed the Thresh, and killing enemies is a large portion of League strategy, especially priority targets such as the ADC. Sorry if going after carries was a bad idea.
Did I ever say I didn't buy swifties? And how will Ashe ever reliably stun a Lucian with his dash? This is a conjectural situation regardless, and if you read, you would see I landed all my stuns and Devour.
Again, when did I ever say I did or did not buy pinks, or that I didn't try to keep up with Zed's rotations? I would also like to point out that it's much harder to rotate safely as an immobile, squishy mage than as a quick, mobile assassin. Even for Xerath's range.
I mentioned one item (Zhonyas), does that mean that was my whole build? In this hypothetical situation, I WOULD have Abyssal, as well as Sorc Boots, Liandry's, Void Staff, and other good Fiddle items. Doesn't matter to a Corki though, in his current state. You do realize how Fiddle ult works, right? I have to take a risk and Zhonyas IN THE MIDDLE of the enemy team. If the teamfight doesn't end by the time I come out if stasis, or shift its position, then often I am in the middle of the enemy team. So, yes, I did 'walk into' Corki damage for my team.
No mana pots anymore......didn't you read patch notes months ago? Even with Athene's, mage can still go OOM, especially spam combo mages like Syndra. Secondly, range means shit against the defense of a full tank with the damage of an AD assassin. Especially when that guy has a dash and potent nearsight too.
Why? He's got damage, inherent tankiness, can roam, great teamfights. Still doesn't help him against the top meta right now.
I think I understand the point you're trying to make but it came across as rude and condescending just for the sake of being rude and condescending. You also made a lot of assumptions that weren't relevant to what I was pointing out.