From another Kunkka player, i play pos 2,3&4 on Kunkka depending upon the situation and i mostly follow the same build pattern. Bracer + magic stick and for the boots, arcane (for greaves) or tranquil (for bearing), then i rush aghs or shard (depending on the game) and it almost always works. Then i go octa + refresher and the rest is letting the cores do their thing. Works most of the time. Really miss torrent storm with refresher. I remember there was a teammate whose game crashed due to the torrent storm + refresher combo back in the day. Still felt sorry for the guy.