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.
Zilean is fragile if a team focuses on him, but otherwise he's very difficult to kill. Commit to killing him as a team.
If you're able to match Zilean's speed, it can sometimes be beneficial to wait until his ultimate has faded before landing the killing blow.
The stat comparisons provided here highlight several important Kog'Maw versus Zilean matchup stats that can help you figure out the differences between this pair of champions. For instance, Kog'Maw’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Zilean’s ratio of NaN, indicating that Kog'Maw may be more central to his team's team fighting potential than Zilean. This observation is largely fueled by the differences in killsdeaths.
Kog'Maw normally has a much larger longest kill spree than his enemy does. Typically, he takes more damage than Zilean. This is usually reflective of different amounts of tankyness; however, it can also hint that the one champ has less mobility and thus is not able to escape further damage when engaged or poked.
Both LoL champions are great. Both champs have their strengths, weaknesses, and counters. In the game's current meta, Kog'Maw usually loses when playing against Zilean, with a 48.4% win rate. Thus, Kog'Maw makes a poor counter for Zilean.
While Kog'Maw does have a lower win rate compared to Zilean, when they face off with one another, Kog'Maw also has a greater level of difficulty that makes him a more difficult champion to pick up and master. You should be careful when picking Kog'Maw into Zilean.
Furthermore, Kog'Maw has only a small amount of CC and other utility, a similar amount to Zilean. This makes her just as valuable during teamfights, especially when fighting champions with a lot of burst damage.
While there isn't a single best champion overall in League of Legends, in Kog'Maw vs Zilean matchups, Zilean is the better champion with a lower win rate, similar champion depth, and a similar amount of utility to help out your team members during late stage team fights.
Kog'Maw is a somewhat poor counter to Zilean. You will do well by focussing your tactics on increasing your CS and destroying objectives. If you can do that, you should do very well as Kog'Maw against Zilean.
To truly master Kog'Maw to counter Zilean during both the early game and mid / late game phases of League of Legends, you should continue reading to learn a few extra lessons on this matchup. If you mind the build and tips presented here, you should increase your win rate by a lot and be closer to League of Legends pro players.
Kog'Maw typically picks up more CS relative to Zilean. Champions who on average don't earn much CS often don't need much CS to be valuable teammates, such as sup champs. These kinds of champions are able to scale properly off of their skills, stats, and first items alone. Yet, champs with a lot of CS, such as hyper-carries, often need many items to be effective. In either case, try to do better than the values displayed on this page to do well.
The top items to have in your Kog'Maw versus Zilean build consist of Runaan's Hurricane, Guinsoo's Rageblade, and Blade of The Ruined King. When Kog'Maw used at least these three items in his build, he did significantly better against Zilean than with most other typical counter builds. In fact, Kog'Maw had an average winrate of 48.4% when countering Zilean with this counter build.
To have the highest chance of beating Zilean 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. Out of all the runes players used for Kog'Maw vs Zilean face-offs, this order of runes resulted in the best win rate. Notably, these runes gave a 48.4% win rate overall.
By default, tips, statistics, and builds on how to beat Zilean as Kog'Maw are presented for all skill levels combined. If you would like to scope the statistics and builds to an individual player tier, you may use the selection menu located earlier in the counter matchup guide.