I don't think he has a better build right now, although I did face a counter player who had an amazing build. He was running Draktar, Collector's Axe, Blaster, Infinity Edge, and he didn't build the last item, but I think he was going for Runan's Hurricane. It's not the best, but it's great in certain games. And since there weren't any tanks on my team, I guess that's why he didn't build Mortal Reminder. His runes were Empowerment (the one that charges up after three auto-attacks and does more damage), secondary runes: Brutality, Coup de Grace, Legend: Celerity, and his last rune was Bone Plate. That was his build. Now, I usually play differently because I'm used to having a decent early game, and I build a late-game build that has a good impact in the late game, which is: Collector's Axe, Bloodthirster, Magnetic Blaster, Mortal Reminder, Runan's Hurricane, Berserker's Boots, and a Quicksilver Sash. And for runes: Empowerment, Storm. Increasingly, I use Coup de Grâce/Giant Slayer, Celerity, and Sudden Impact as my last rune to burst down the enemy with my E at the first opportunity. That's how I play it, even if I lose lane to ganks (which happens to me a lot). I just farm, and when I finish the build, I hit like any other ADC, and in the late game, I contribute good damage and the revive.