Hi, this is my first build as Kog'Maw i play him as an attack speed champion and I use BIO-ARCANE BARRAGE as mutch as possible.
This is my very first build so please leave comments or send PM how i can make it better.

For runes i take
Greater Mark of Desolation/ for better early game

/ so that you are not so squishy for AD spammers

/ so you are not so squishy for AP spammers

Greater Quintessence of Desolation/ for better early game

Masteries I go 21/0/9
Mostly for the AD and attack speed and then also for little cooldown reduction

My items Is very diffrent for diffrent games but I have a plan to follow and then change it after how the match is going

In the beggining i buy a for health, lifesteal and AD whitch is great for Kog'Maw.

Then I get Boots. Most of the times i get the for attack speed but if they starting have like a feeded or so i get Magic resist boots.

Then its time for my main build then i thought Attack speed and some AP for . The is the best choice.
Its cheap and every time you attack they loose magic resistance.
But you can also buy . Its moore expensive but gives more Ap, it also gives cooldown reduction.
which never is wrong.


After that you pretty mutch attack speed thanks to the so i go for the whitch gives both AD and AP and with the stacking of it you will have insane Attack speed and the will just damage more.

After that its pretty hard to say if you are having a bad round go for some health if you are having a great round go for the and if you are having a normal round ,
I usaly go for the it gives great attack speed and most of all Movement speed so you can Harras the other team easy with , and thanks to the you can get full attack speed.

After that if you havent done that already its time for a defensiv item.
Now i first sell the Dorans blade so i have room for the defensiv item.
You have too look where most of the damage come from if its a feeded champion or just many AD is up to you to find out.
I mostly go for the but if im having a bad round and getting tierd of always die or they just have AD spammers i get the .

And the Last item i get if the round is still on is the
becaouse it helps you in so many ways lifesteal and spell wamp and ofcorse the AD and AP is never bad for Kog'Maw.

HERE I explain how Kog'Maws abilitys works and how i use them

It is you passive. Upon dying, Kog'Maw starts he become a self ticking bomb that detonates after 4 seconds , dealing 100 + (25 x level) true damage to surrounding enemies. Kog'Maw can run under this time and also gain movment speed when he enter this mode.

So when you die dont start relaxing and wait for the respawn be ready to run up and finnish off you killer. I find this ability great for finnish of when he as done hes

Its passive increases attack speed. Active you launche a corrosive projectile which deals magic damage and reduces the target's armor and magic resistance.

I take this ability 3rd then max it second.
I max it mostly for the attack speed but also for when you will be attacking a player use this ability first for the armor and magic resistance reduce.

: For 6 seconds, Kog'Maw's attacks gain additional range and deal a percentage of the target's maximum health as magic damage (max 100 damage to monsters).

This ability I take 2:d and MAX first.
Why I MAX this ability first is no big question? You have mutch attack speed and it damage in %hp and if you start of by sending a on your target first to lower the magic resist it damage evan more.
But I wouldent start spamming it until it is in atleast level 3 becaouse other wise its to low %hp, but when its maxed and you have malady just shoot the HELL out of them.

Kog'Maw launches a peculiar ooze which deals magic damage to all enemies it passes through and leaves a trail for 4 seconds which slows enemies who stand on it.

This ability I take First but i MAX it last I just take it in the beggining for the slow.
My build does not fokusing in making the strongest.
The ability cost ALOT off mana so please to be a good Kog'Maw Do not spam it !.
And a very good thing too keep in mind is the ability doesn't need to hit the target to slow them they just need to run truogh the slime.

Kog'Maw fires a living artillery shell at a great distance dealing damage and revealing targets for 4 seconds. (150% bonus damage to champions).
Cost: 40 Mana each subsequent Living Artillery in the next 6 seconds costs 40 additional mana, capping at 200 per cast

This is you ultimate and the diffrent between this ultimate and all the other champions is it has a very low coldown. BUT if you spam the ability it will cost you more and more mana.
This ability is great for looking in bushes beacouse if it hits a champion you will see him on the map for a short while and he can scout out there whole team for you.

For summoner spells I take not for chasing the makes that for you.
I take for escaping in thuff situations when you are getting targeted or ganks and so on.
Then i take still not for finish Kills I take it for in mid game when a annoying Jax or so on comes and wanna 1 vs 1 with you. Then I put it on him for lower is HP faster.

I think the is most important can you swich if you ask me.

So:
is an most!
good but you can swich it.

PROS

Great damage output
Fast Movment speed
Great attackspeed
Hard too kill
You need both Magic resist and Armor to keep him away
He can sing !!!

CONS

Pretty low attack damage on turrets
Ultimate doesent damage so mutch
Mana starved if not having the banshee veil
Becaouse of alot of attack speed People will say that you kill steal alot which is not true

Early Game

level 1-5
Just go Top or Bot.
Then try too last hit as mutch as possible but dont spamm an spell you are mana starved in early game.
and ofcourse HARRAS, every time the enemy goes to kill any of you meele minions Stop hitting their minions and start hitting them.
That is a very effective way to control the other team beacouse no have have really mutch hp in early game.

So thats it fast shooting for a kill
Hope you liked the guide and please leave a commet if you liked or disslikead and also please say why :)
so i can change and improve this guild for moore player to come