So, this is my first MobaFire build EVAR!
MUST READ DIS: THESE RUNES ARE MY ONLY SET OF RUNES, FEEL FREE TO CHANGE THEM AROUND TO WHATEVER YOU WANT.


Please try the build out and then vote. Any tips is welcome too. :D

Now. As I said before, they are the only set of runes I have ATM.
But if you want to change them around.
Just make sure you dont build into something random like dodge.
Kog'maw uses: AP/AD/AS/Mana ( A heck load ) / HP ( Personally I'd prefer not to get HP runes but it's totally up to you.)

These masteries came from a different build. ( Right click and win ) I just switched the masteries around a little to fit my Summoner Spells.
Yet again, feel free to alter them if you wish.

I know many people will prefer other items, but I find this build really great.
Boots- Obvious reason. The AS helps a lot in dominion considering your a % health DPS.
Lightbringer- Great AS, has some AD and the passive helps a lot. VSing anyone, not just stealth champs like Akali/Twitch/Eve ect.
Ionic Spark- Great AS yet again. Passive actually helps more than you think.
Frozen Mallet- I chose this health item, because of the great HP amount, the extra DMG and the slow. The slow helps alot when chasing.
Black Cleaver- Black Cleaver has great DMG. Yet the Armor reduction is just... <3
Phantom Dancer- ( Switching this with Infinity Edge works too) It really depends who your VSing. But one reason I chose this is because of the movement speed. Great for dominion. It can also help with your passive.

Sorry for no pictures of the abilities.
If they're charging at you like it's their last day of their life, then I'd slow them with "E" and just click "W" and right click. Once their in range of "Q" I would use it straight away. Spamming R also helps when their slowed.

I chose Exhuast because it can help both offense and defence.
When VSing another AS champion. It'll turn the tide.
When running, it'll make em rage.

---

Ghost because it just helps alot in Dominion. You need to run around, get to capture points ASAP Using Ghost to run away also helps.

Pros: Can take down anyone fast. -- Can get away and take down people from the other side of a wall. -- Can run away fast ( With slow/ghost/exhaust ) -- Passive lets you finish off champs that run away.
Cons -- Usually aimed -- Really item dependant (Wont do too great at early game) -- Runs slow
-- Often Exhausted -- Need to be familiar with Kog'Maw to be good.

Summary? Screw the summary... Actually no...
Anyways. If there is any other opinions, comment! Tell me anything new.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Please try out the build, and then vote. Thanx.