Why does an Irelia with nothing but a Trinity force and some armor outdamage a 4 item Yi?

I don't get it, the amount of damage Yi has is absurd, having two tank shred items and three sources of true damage, Irelia STILL manages to outdamage him in a 1v1 fight. An Item with less than 40 Ad, and a 40% AS boost and a 200% AD on hit effect once every 3 seconds. That's all it takes for Irelia to outdamage anyone in the game. Does anyone else not see a problem with that?
Report as:
Offensive Spam Harassment Incorrect Board