User blog comment:Astanas7/Is there literally any way to counter Yasuo in Dominion/@comment-3974211-20140204195615

Your first problem was that you bought armor and not health. I mean seriously - Randuin's and Sunfire is all you need. Iceborn is a good item for different reasons - just because you were playing Yorick. Stacking armor above 100/200 is pointless (200 armor is 65% damage reduction; 400 is 80% damage reduction - not that much of an improvement, especially when Yasuo's ultimate gives him 50% armor pen).

Your second problem is that you didn't build any means to kill Yasuo - so of course you were going to lose. All you bought was "I'm going to make this fight take longer". You should have bought Ravenous Hydra and maybe Muramana, so that you could churn out the hurt.