Melee allies can stack Frost for your Permafrost, keep an eye on who they are attacking.
Save Glacial Prison for encounters where you have teammates present to take advantage of it.
Use Arctic Assault to escape bad situations, interupt channeled spells or chase runners.
If Master Yi tries to farm with Alpha Strike, hit him a few times so he has to use mana with Meditate to heal.
Although Master Yi cannot be slowed while using Highlander, other disables can stop him in his tracks.
Meditate is an effective method of healing damage over time, but Master Yi is susceptible to coordinated team ganks early in the game.
The stats shown on this page clarify some critical Sejuani versus Master Yi matchup statistics that can help us grasp the distinctions between the pair. Sejuani’s KDA ratio ([kills + assists] / deaths) of NaN is better than Master Yi’s ratio of NaN, showing that Sejuani may be more central to her team's team fighting effectiveness than Master Yi. This observation is largely caused by the differences in assists.
Sejuani usually has a significantly smaller longest killing spree than her opponent does. Commonly, she receives a similar amount of damage to Master Yi. This commonly reflects differing health capacities; however, it can also show that the one champ has less agility and thus is unable to kite away from further damage when poked or engaged.
Both LoL champs are great. Both champs have their pros and cons. In League's current meta, Sejuani usually loses when facing off against Master Yi, with a 47.6% win rate. Therefore, Sejuani makes a poor counter for Master Yi.
While Sejuani does have a lower win rate compared to Master Yi, when facing one another, Sejuani also has a greater difficulty level that makes her a more difficult champ to learn and master. You may get destroyed when picking Sejuani into Master Yi.
Furthermore, Sejuani has a good amount of CC and other utility, a similar amount to Master Yi. This makes her just as valuable during teamfights, especially when trying to counter champions with a lot of burst damage.
While there is not a single best champion overall in League of Legends, in Sejuani vs Master Yi matchups, Master Yi 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.
Sejuani is a terribly counter to Master Yi. Make sure you focus your actions on maximizing your gold income and clearing objectives. If you are able to do that, you should do very well as Sejuani against Master Yi.
To truly master Sejuani to counter Master Yi during both the laning 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 mind the build and suggestions shown here, you will increase your win rate by a lot and be closer to League of Legends pro players.
Sejuani usually accumulates a similar amount of CS relative to Master Yi. Champions who on average don't get much CS usualy don't have to have much CS to be valuable teammates, such as sup champs. These kinds of champions are capable of scaling properly off of their abilities and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, often have to have many items to be effective. In either case, try to exceed the values shown on this page to do well.
The most important items to prioritize in your Sejuani versus Master Yi build include Sunfire Aegis, Thornmail, and Iceborn Gauntlet. When Sejuani incorporated at least these three items in her build, she did a lot better when fighting Master Yi than with most other common builds. In fact, Sejuani had an average winrate of 47.6% when countering Master Yi with this build.
To have the highest likelihood of annihilating Master Yi as Sejuani, Sejuani players should take the Aftershock, Font of Life, Conditioning, Overgrowth, Legend: Alacrity, and Triumph runes from the Resolve and Precision rune sets. Of all the runes players chose for Sejuani vs Master Yi counter picks, this mixture of runes yielded the greatest win rate. Moreover, these runes provided a 47.6% winrate overall.
By default, tips, statistics, and builds on how to beat Master Yi as Sejuani are presented for all ranked divisions combined. If you would like to narrow the stats and builds to a particular player tier, you should use the selection menu earlier on the page.