Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Siege Tank Kog'Maw is a AP Caster. sitting safety far from battles yet still bringing pain to your enemies.
* Excellent Pusher and Counter Pusher.
* Far less deaths. You can stand far away from a battle yet still be in it. allowing you to easily to max out a Soul-Stealer!
* Great Map Control Character. With an ult able to reveal enemies locations on hit and super clairvoyance, you will know what your enemy is doing.
*great mid character
* Mana issues (early to mid game mostly.
* easily threatened by stealthy characters.
* Requires good team support
Whats your Job?
With this build,
Ghost- your not good at getting away when things go bad. This will save you. You can also use Ghost chasing down weak champions with Icathian Surprise, and with The improved ghost in the Utility mastery tree, you can make sure you send them to hell!
Clairvoyance- the best way to avoid a gank and to not be surprised. With the Utility masteries, You can pop this once every min. great for protection against stealth characters better map control.
Other spells that are good are Clarity, Exhaust, and flash. All of these spells can be adjusted easily in your masteries.
Grab all the magic offense masteries in the tree. Utility tree is key for this build for enhance spells, mana, and cool downs.
I usually start with boots + health/ mana potions. In early game i work on buying Sorc boots and Soul-stealer and Giants belt in that order. by mid game I work on Archangel's Staff to fix the mana draining issue, and the Rylai's Crystal Scepter for defense and slows. Then Zhonya's Ring makes you into a true caster siege tank. I have not yet had a game that lasted long enough for me to pick the last item so i have yet to test anything out other then the lich bane which provided very effective.
Characters to avoid!
Characters with Stealth like Eve, Shaco, and Twitch will be the only characters that pose a threat to you. You will be so far away from your team in team battles that if someone was to pop out of stealth with their knife in their back, you will be in trouble.
Whos your Best Friend?
Anyone who can keep an enemy still enough for you to nuke them. Shen and Rammus Taunts and ash's arrow make excellent buddies.