Re: Lina build? (skill+item)
Skill build is alright.
My personal preference for items are Bottle, Aghan, Dagger, Boots/Threads (depending on game), Wand, Bracers/Nulls (if I need the mana/hp)
Refresher works pretty good (you have a way to use that +40 damage) if its dragging on verrrry late and you need to Semi-Carry.
Guinsoo, Forcestaff, Eul, Orchid, ROB/VO, Ghost Scepter, Blademail, Urn, Dagon (if you can farm it up early), Shiva etc. etc.. Depends on the game. Situationally useful.
BOT and Phase are also viable.
Courier/Wards/Dust if noone else gets it.
As a general rule of thumb, I take Aghan though. I don't like dying very much.
(I think Lothar is shit on her >___________>)