Kog'Maw/Strategy

Strategy

 * Kog'Maw can outrange most champions with his Bio-Arcane Barrage ability.
 * Use Void Ooze to set up a perfect Living Artillery.
 * Make the most out of your Icathian Surprise.
 * When combined with Zilean's ultimate, Kog'Maw will be able to perform two Icathian Surprises if utilized correctly.

Guides
Submitted on the forums by Phreak depicting his item build and skill order for Kog'Maw

"Kog’Maw can be played very effectively as a hybrid caster/DPS champion. Focusing on Void Ooze, Bio-Arcane Barrage, and Living Artillery, Kog’Maw is great at dealing damage in bursts at long range. Using range to his advantage, I find that playing with a complete disregard for durability will suit you well. Kog’Maw also farms minions and monsters very quickly, allowing you to become the most deadly champion on the map in a very short amount of time."

"Additionally, Kog'Maw's "Bio-Arcane Barrage" deals a percentage of enemy maximum health as damage. This makes him highly effective against tanks, with high armor and lots of health. With proper item build (Rageblades), Kog'Maw can kill any hero in 10 hits"

"Specifically, I aim for, , and . I also try to take the Golem as much as possible, which should be easy since all 4 of your abilities affect it. Always try to use Living Artillery when you can afford the mana, as it’s your best ability. From there, careful use of Bio-Arcane Barrage is crucial because of its lengthy cooldown. Proper management of all your abilities will give you a lot of damage output once the battles start."

My skill order is:
 * 1) Void Ooze
 * 2) Bio-Arcane Barrage
 * 3) Void Ooze
 * 4) Caustic Spittle
 * 5) Void Ooze
 * 6) Living Artillery
 * 7) Void Ooze
 * 8) Bio-Arcane Barrage
 * 9) Void Ooze
 * 10) Bio-Arcane Barrage
 * 11) Living Artillery
 * 12) Bio-Arcane Barrage
 * 13) Bio-Arcane Barrage
 * 14) Caustic Spittle
 * 15) Caustic Spittle
 * 16) Living Artillery
 * 17) Caustic Spittle
 * 18) Caustic Spittle

My item build, along with some other recommend items are:
 * + 2

AP Kog'maw

Another good strategy is "AP-Koggy": Getting Archangel Staff first for MP and then stacking AP + Magic Penetration results in heavy shots of Void Ooze, Caustic Spittle and Living Artillery