Lina: The Slayer

IMO your cores are too expensive, considering that you built her as a semi-support, and bloodstone seems like way more mana than you need. I find Euls+sheep to be enough.

Overall a good basic guide, build order is right. I'd make a few points though:

- You'll have severe mana problems early on with only 1 Clarity and no Arcane Boots, RoB isn't enough to cover your needs

- Core items are pretty OTT, that's a hell of a lot of gold, even if the actual choices are ok

- Lina can be built into a semi-carry using big hitting damage items, but again this requires excessive amounts of farm

you have to separate which one is luxury items for lina, which one is situational items for her. Clearly, Bracer and Arcane Boots are not luxury items. And as BossOfGuns said before me, nowadays people tend to build Lina as a hard hitter, so they buy items such as Daedalus and Desolator.

Classic build for lina, upvoted. Add Daedalus to situational. After all the boost you get from E, look at the crits popping up.