http://www.dotabuff.com/matches/1784169252
Perfect game showing how useless she is when you play around her. Granted she won this game, but not because of her. Made a couple of mistakes, most notable of which letting them win the game while Ember was DCed for 3 minutes and nobody paused, but that's Reborn for you.
She can certainly win mid against just about any hero. I think it's funny, I was saying Lina mid was godly even before they buffed dragon slave. Now that it can one shot ranged creeps, WAOW, what a broken mid pick. You literally can't stop her from getting minimum 2 creeps per wave, 3 really if she's smart about it, which means she is pretty much guaranteed her zero skill eul's combo by like 12 minutes. Nice.
All that said, she's only good for one kill, and plenty of items can prevent it. Linkens, glimmer on an ally, someone can simply stun her when she eul's you, you can BKB when you land and kill her, lots of ways to deal with Lina. She can't zipzap. Probably the only thing I'd really consider broken about her, aside from her guaranteed win mid lane, is having 460 movespeed with brown boots and eul's because of her passive, but that's more eul's needing a nerf than Lina.