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.
When should i pick kog'maw jungle?
-When both your toplaner and your support are tanks/offtanks.
Why is it a good choice?
-Clear Speed 10/10, Ganks with E+Red Smite+W 10/10, Devourer and Guinnso suits him pretty well, even though he's a ranged champion. His effectiveness on taking towers and objectives and the supressing damage on teamfights.
What are kog'maw's challenges on jungle?
-First of all, to play him jungle, you must at least know how to play him, how to itemize against different comps and to know how to play with a ranged champion like him.[/\|color]