Make sure to buy items that will evolve at least 1 or 2 of your spells.
Work with your teammates to set up your Ultimate and optimize damage with your passive.
Try to catch enemy carries alone to burst them with Icathian Rain.
Try to coordinate high-damage abilities with your allies right after Dr. Mundo uses his ultimate, but if you're unable to kill him quickly with burst he will heal through the damage.
Try casting Ignite when Dr. Mundo uses Sadism to negate a large portion of its healing.
The stats shown on this page feature several vital Kai'Sa vs. Dr. Mundo matchup stats that may help us appreciate the distinctions between the two. As an example, Kai'Sa’s KDA ratio ([kills + assists] / deaths) of NaN is greater than Dr. Mundo’s ratio of NaN, highlighting that Kai'Sa may be more central to her team's team fighting capacity than Dr. Mundo. This observation is in large part fueled by the difference in kills.
Kai'Sa often has a slightly larger longest kill spree than her matchup does. Typically, she takes less damage than Dr. Mundo. This typically indicates differing health capacities, yet it can also illustrate that the one champion has less agility and thus is unable to escape further harm when engaged or poked.
Both LoL champions are great. Both have their pros and cons. In the game's current meta, Kai'Sa usually loses when playing against Dr. Mundo, with a 45.6% win rate. As a result, Kai'Sa makes a bad counter for Dr. Mundo.
While Kai'Sa does have a much lower win rate compared to Dr. Mundo, when on opposite teams, Kai'Sa also has a greater level of difficulty that makes her a more difficult champion to develop with. You should expect to face a difficult match when picking Kai'Sa into Dr. Mundo.
Moreover, Kai'Sa has almost no amount of utility and CC, a similar amount to Dr. Mundo. This often makes her just as valuable during team fights, especially when facing champions with a ton of burst damage.
While there is not one best champion overall in League of Legends, in Kai'Sa vs Dr. Mundo matchups, Dr. Mundo is the better champion with a much lower win rate, more champion depth, and a similar amount of utility to help out your allies during teamfights.
Kai'Sa is a bad counter for Dr. Mundo. Focus your play on keeping up your CS and clearing objectives. If you are able to do that, you should do very well as Kai'Sa against Dr. Mundo.
If you would like to truly master Kai'Sa in order to counter Dr. Mundo during both the lane and mid / late game phases of League of Legends, you should continue reading to gather a few extra tricks and insights into this matchup. If you pay attention to the build and suggestions presented above, you should grow your win rate by a lot and be closer to League of Legends pro players.
Kai'Sa most often racks up a similar amount of CS compared to Dr. Mundo. Champions who on average don't take many minion kills often don't need much CS to be valuable teammates, such as sup champs. These kinds of champions are capable of scaling well off of their skills, stats, and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, often need a lot of items to be effective. In either case, try to exceed the values reported on this page to do well.
The top items to prioritize in your Kai'Sa versus Dr. Mundo build include Bloodthirster, Guinsoo's Rageblade, and Kraken Slayer. When Kai'Sa incorporated at least these three pieces in her build, she performed a lot better countering Dr. Mundo than with many other commonly used item sets. In fact, Kai'Sa boasted an average winrate of 45.6% battling Dr. Mundo with this counter build.
To have the highest likelihood of beating Dr. Mundo as Kai'Sa, you should use the Lethal Tempo, Presence of Mind, Legend: Bloodline, Coup de Grace, Biscuit Delivery, and Magical Footwear runes from the Precision and Inspiration rune sets. Out of all the rune sets players picked for Kai'Sa vs Dr. Mundo counters, this combo of runes resulted in the highest win rate. Moreover, these runes provided a 45.6% winrate overall.
By default, tips, statistics, and builds on how to beat Dr. Mundo as Kai'Sa are presented for all ranked divisions combined. To narrow the statistics and builds to a particular rank, you can use the selection menu located earlier in the counter matchup guide.