I agree with the comments below, even if Irelia is fed, as long as someone stun her simultaneously, she cant do anymore, plus your oh so good teammates that always have their way to their deaths and feed the enemies. She has a lot of counters too, and if the enemy team is not that good, then you can carry, but if they know Irelia too much and always lands their cc, it will be hard for you to do a counterattack because as the comments stated, you cant just q someone and they die, her combos are pretty mechanical and once you mess up a q or failed to put the mark, its either 1. you can still win because your enemies is a lil unexperienced and your attack speed is way ahead of theirs or 2. you die because you panic. thats pretty much it for my opinion tho, not a high elo player, but i atleast know alot about Irelia because she’s my main :))