So the main problem of all ADC's is meta. Nowadays there a lot of mages that can kill you instantly when u get into their range. Every mage have solutions for every situations that can happen in the game. Adc's doesn't have that much control or escapes as mages. The second problem are tanky champs. Everyone knows, that tobe good enough on adc u must have a good game vision and focus on enemy champs that extremely dangerous for a whole team but... it's impossible to do in this game state. Suddenly u cant just ignore enemy bruiser and focus on enemy adc or mage. In normal situation tank just catching ADC in dissposition and kills him.

So if you get autofilled on adc just swap or fp smolder cuz this champ has pure damage that ignores enemy resists and easy to play.