RAWWRH , The EQ Knock up can still got dodged , by a flash or an instant escape ability (Ezreal Arcane Shift..etc)
So when do you build Ruined king over IE ?
As a Yaswag main. I usually went up for the core item , the statikk , but do you rush your IE to increase you damage or do you try to got Blade of the ruined king ? Why BRK ? Because maybe they're a motherf*cker call maokai in lane or something , or just Zed. Or Leblanc. Aniway , why Blade of the ruined king ? He give you up lifesteal , an active slow effect that can help to pick up kills , and an unique passive totally cheated against tank. If you got you IE then a last whisper , You will never get stuck in an 15 min fight against a tank ,you just need to land you ultimate to deal true damage . To a tank . Whatever if he is a 2300 Armor Malphite , he will still get one shotted by the Q Q , E Q , Auto , R Q Combo. Cuz Yaswag totally broken. And it's still more fun when you find the Enemy ADC Farming alone on a lane , you don't even need to Q him to kill him , 2/3 Auto and he's dead. Look like Yasuo learn a bit from Yi.