I'm not fond of your selection for CDR on your Glyphs. I don't think it's really required. If you have to get away that badly, it means you've over-extended too much. Using CDR Glyphs would hinder your ability to play Caitlyn to her full effectiveness.

This build is great at dealing damage on the squishies, but the fact that there is no survivability means that it's gonna be a lot harder to stay in fights, and to also solo beefy guys(for example Sion) if you were to get into that situation. Something that may help would be Frozen Mallet and Banshee's Veil(Although already mentioned). Frozen Mallet gives you only a little damage, but an extra 700 health PLUS a slow makes it totally worth getting. Banshee's Veil already explains itself. I know the blood thirster may heal you, but Thornmail is still gonna take a big chunk out of that INCLUDING their damage output and if you're stunned/feared/blinded, you'll be useless for a bit, so if you want more chances to make a getaway or just to resume damaging that Teemo, you're gonna need Mercury's Treads. It may take away some attack speed, but the tenacity is totally worth it. Also, that's what the Phantom Dancer is there for right? Sorry, just wanted to add my two cents. Hope you take this into consideration. :) Voted up though, I do very well against Karthus. He can't handle the damage I give at level 6.

Personally I sell the boots at the end of the build and then get the Madred's Bloodrazor :D Also if I am playing mid lane then I go for the Bloodthirster first and throw ALL my ruins into attack speed, at level 30 I start with 38%+ attack speed. This lets me farm better and put pressure on my opponent. Once I have the Bloodthirster I quickly buff it up thanks to the attack speed from the ruins and easily overpower and finish off my opponent. Hope this is useful to someone

+1 Verry good build at end im like 1,5k crit on baron each time i shoot XD but i got 28/10/14 in Ranked game ;) ''Shes more than a carry'' I Die easy vs a Trynd but i could 1v4 all the other team and 2 of them were tanks ;)

This is the exact same build as the Teemo build I made and is hard at the start but is good late game

Nice guide,
i donno about you, but i like to get a frozen mallet if i get a little fed and outfarming the other team (mid to start of late game), since then i can start ganking and there is no getaways from cait's range and that FM slow aka keeping them down untill they surrender. +1 from meh

I think the doran's blade should be added to the item build. Love the damage though.

Been using this build for a while; well, actually, that's not true. I think Caitlyn was free the first week I was getting back into playing LoL, and I haven't looked back since. I sometimes go on a hiatus from playing Caitlyn, but I always come back sooner or later to her and this fantastic build. To put it simply, Caitlyn was and still is one of my strongest and favorite out of all the champions that I play.

I use this on ranked games and i go silver every 4 win = 1 lose ty man

Nevermind, i see you have the razor in there as optional, just me rushing through without reading everything.

Love the build, just great really. One question though. have you thought about throwing on madred's razor? I usually wait to do it till late game, but it's a great way to get around the heavy armor that people tend to do to negate you. just a thought. Definite +1 from me!