I'm trying Yuyuko. Which one is better, control rod or adamantine? Hakkero might be out of the question, because I can't farm 6000 points.
It is situational yo. Adamantine is for making your Yuyu more sturdy and protective. I would bother getting Stopwatch / GHGM (hex) / control rod first. It has better built up for your INT, which means regeneration in return. Rushing hakkero on Yuyuko is not quite required, because the only spammable skill you got is your D anyway which damages. (Not that it is bad but...)
If you go for control rod / stop watch or ghgm, you will become a disabler Yuyuko which is more more useful in team combat. Most of your kills will come from your ult anyway by poor heroes who cannot run away. The Lily item is a nice troll item, but it doesn't make up for what you can get if you just farm bit more.
DrRawr :[ you make me sad :[ what about to our good old Surprise! You're dead Yuyuko subdoll :[ (oh right, the item is no longer INT beneficial...)