hello I don't know how to put images in this because i just started so okay caitlyn shes more on a harasser. now

okay for the runes you need critical and maybe attack speed now it's really up to you on what runes you want. I'm going to tell you on what runes I use.

Quintessence
[*] greater quintessence of furor 3 (+4.46% critical damage)
Mark
[*] greater mark of furor 9 (+2.23% critical damage)
Glyph
[*] greater glyph of alacrity 9 (0.64% attack speed)
Seal
[*] greater seal of regeneration 9 (+0.11 health regen / 5sec.per level [+1.98 at level 18])

okay in the masteries so sorry because I don't know how to put the images in here so its more on offense and if your offense is full do some defense. I'm sorry i can't put the image so sorry

now best part for the items are 1st get a phantom dancer and make your way to a b.f. sword then go get another phantom dancer then get an infinity edge then get 2 the blood thirster

Item order
[*] Doran's blade
[*] boots of speed
[*] vampiric scepter
[*] berserker's greaves
[*] doran's blade
[*] phantom dancer
[*] doran's blade
[*] doran's blade
[*] B.F. sword
[*] phantom dancer
[*] infinity edge
[*] B.F. sword
[*] the bloodthirster
[*] B.F. sword
[*] the bloodthirster

now you can have 1 the bloodthirster and frozen mallet just to slow them down or have more health.

Main Items

Berserker's greaves

Phantom dancer

Phantom dancer

Infinity edge

The Bloodthirster

The Bloodthirster

now skill sequence is easy I'm going to show you

[*] q
[*] e
[*] w
[*] q
[*] e
[*] r
now just follow that sequence till the end to make less confusion :)

now for the summoner spell i use heal for emergency and flash for quick escape.

[*] heal
[*] flash

Now to use caitlyn harass number one!! make sure to farm a lot for quick item build. make sure you have 1 tank or 1 support with you because your the hitter not the tank I'm use to being tank like jax so i die a lot with caitlyn i tank her even if shes a hiter >.>