Pros

+ Very strong late game.
+ Good single target damage.
+ One of the highest attack ranges in the game with Bio-Arcane Barrage active.
+ A consistent steroid.
+ Has a good poke and scouting tool with Living Artillery.
+ Excellent at taking down champions with a large health pool, such as Shen, Cho'Gath, and Zac. Kog'Maw really does shine in the late game. His Bio-Arcane Barrage allows for a great amount of damage onto his enemies, certainly melting any squishes or tanks that come his way. The single target damage that Kog'Maw can dish out in a mere few seconds is nothing to laugh at. Living Artillery is a very utility focused skill with the ability to reveal enemies hit by it. Void Ooze also does slow enemies for a considerable amount, and it allows Kog'Maw an easier time kiting his enemies around the battlefield. This guy is also from the Void. What more do you need?



Cons

- Slightly weak early-game.
- Can be mana-hungry.
- Very squishy and no escapes, so he's vulnerable to many champions, such as Ahri.
- AP scaling on his abilities.
- Low base autoattack range
- Bio-Arcane Barrage's downtime results in loss of damage.
- He isn't black either. Just like many other AD carries, Kog'Maw is very squishy, and when you pair that with the lack of a built-in escape, it can result in some difficulty during teamfights. Any champion, like Ahri, can jump onto him and decimate Kog'Maw if caught off-guard. Kog'Maw's ultimate, Living Artillery, also can build up, resulting in a lot of mana used up. Another downside is that none of his abilities scale with AD. Finally, without Bio-Arcane Barrage, Kog'Maw is left with a low base autoattack range and a loss of damage.