Make the most out of your Icathian Surprise.
Use Void Ooze to set up a perfect Living Artillery.
Kog'Maw can outrange most champions with his Bio-Arcane Barrage ability.
Try to stay away from walls. Ornn is much less strong if he cannot stun you.
Attack Ornn to keep him from creating items in lane.
The stat comparisons shown here clarify several vital Kog'Maw against Ornn counter stats that can help us explain the differences and similarities between this set of champs. As an example, Kog'Maw’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Ornn’s KDA ratio of NaN, showing that Kog'Maw may be more central to his team's team fighting capability than Ornn. This observation is in large part a result of the difference in kills.
Kog'Maw often has a much larger longest kill spree than his opponent does. Typically, he receives less damage than Ornn. This typically indicates differing health capacities; however, it can also hint that the one champion has less agility and thus is not able to kite away from additional damage when poked or engaged.
Both League of Legends champs are great champions. Both have their strengths, weaknesses, and counters. In League's current meta, Kog'Maw usually fairs equally well when taking on Ornn, with a 50.5% win rate. Thus, Kog'Maw makes an ok counter for Ornn.
While Kog'Maw does have a higher winrate compared to Ornn, when they face off with one another, Kog'Maw also has a greater level of difficulty that makes him a more time consuming character to develop with. You should be careful when picking Kog'Maw into Ornn.
Furthermore, Kog'Maw also has only a small amount of utility and CC, a similar amount to Ornn. This makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there is not a single best champion for every situation in League of Legends, in Kog'Maw vs Ornn matchups, Kog'Maw is the better champion with a similar win rate, more champion depth, and a similar amount of utility to help out your team members during teamfights.
Kog'Maw is a decent counter for Ornn. You will do well by focussing your tactics on maximizing your CS and taking out objectives. If you are able to do that, you should be able to stand on your own as Kog'Maw against Ornn.
To learn all of the intricacies of Kog'Maw in order to counter Ornn during both the lane and mid / late game phases of League of Legends, you should keep reading to learn a few extra tips and tricks for this matchup. If you pay attention to the build and stats displayed here, you should increase your win rate by a lot and be closer to League of Legends pro players.
Kog'Maw on average gets a similar amount of CS as Ornn. Champs who on average don't get much CS often don't need much CS to be effective, such as sup champs. They are capable of scaling properly off of their skills, stats, and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, usually require several high cost items to be effective. In either case, try to exceed the numbers reported here to do well.
The top items to use in your Kog'Maw versus Ornn build include Runaan's Hurricane, Blade of The Ruined King, and Terminus. When Kog'Maw bought at least these three pieces in his build, he did significantly better vs Ornn than with many other typical counter builds. In fact, Kog'Maw boasted an average winrate of 50.5% when playing against Ornn with this build.
To have the greatest chance of crushing Ornn as Kog'Maw, you should take the Lethal Tempo, Triumph, Legend: Bloodline, Last Stand, Conditioning, and Overgrowth runes from the Precision and Resolve rune sets. Of all the rune combinations that we analyzed for Kog'Maw vs Ornn fights, this blending of runes yielded the best win rate. In fact, these runes gave a 50.5% win rate overall.
By default, tips, stats, and builds on how to beat Ornn as Kog'Maw are displayed for all skill levels combined. If you would like to filter the statistics and builds to an individual skill level, you should use the selection menu located earlier in the counter matchup guide.