Everyone got Steamrolled

So last night I was playing with a friend and he was in first place, doing pretty well (had 2 Yasuos at one point) but he got ripped to shreds by a guy who had 3 with .

That Kass was able to stack up attack speed and then just generate shields way faster than anyone could damage him. It was actually impressive. Just an idea for you guys to try out yourselves.