Next game, I got matched with the same guy again.
I asked him if he could play well this time.
He blamed the support a ton.
Since I'm an ADC main, I just trusted him and went with it.
The support abandoned the ADC and only roamed.
I asked the hard-carrying Bard support:
"That ADC has good match history—is it just because the enemy team is strong?"
"No, the ADC's skill is trash. The top side carried, so he got covered.
He's a trash ADC who believes getting carried is his own skill."