Hi, it's my first build ever and I chose Kog'Maw because he's a very good champion but alot of people don't know how to use it and I want to help them. So in this build I will show you the way I play him. I build him like this because at 2,5 of attack speed you can kill them very fast because even if you only attack of 120 damage, you attack so fast that the enemy has no time to attack you. You will see later more details.

And I would have to Thank Dominic Landry, as he is the one that showed me this build and because of him i start play Kog'Maw. Before he did that I was never play Kog'Maw as a carry :D !

Like i said before you want to build Kog in attack speed so you should normally take attack speed runes. But you don't start to buy mark or seal or glyph. Start to buy Quintessence after Mark then Seal and Glyph. Mark give's you +1.7% attack speed.

Seal is a good one to because it give's you +0.76% attack speed it's a bit less then mark. That's why you need to buy on this sequence. More attack speed first.

You need to focus attack speed. I know you will think i'm very dumb but no focus on attack speed. So many people think you need to be AP with kog but no. Glyph give's you +0.64% attack speed.

Then finally you need to buy this first because it give's you +3.4% attack speed. So when you have all runes, you start qith a big advantage because you have so many attack speed and it let you creep very faster and you can harass them alot.