If you're in a lane against ranged players, leveling up Meditate can allow you to stay in the lane longer and gain levels faster than they will.
Try using Alpha Strike on a minion in front of an enemy champion so you are placed at a safe distance at the end of the spell.
Wuju Style is very strong early for last hitting minions.
Dodging Arctic Assault and Glacial Prison can give you a huge advantage.
Focus on avoiding the second swing of Winter's Wrath which carries the brunt of the damage.
Melee enemies can also stack Frost for Sejuani, be very careful around them.
The stat comparisons provided here clarify some valuable Master Yi versus Sejuani counter statistics that can help you interpret the distinctions between this pair of champions. Master Yi’s KDA ratio ([kills + assists] / deaths) of NaN is better than Sejuani’s ratio of NaN, indicating that Master Yi may be more central to his team's team fighting capacity than Sejuani. This observation is in large part a result of the difference in kills.
Master Yi often has a much larger longest killing spree than his matchup does. On average, he receives a similar amount of damage to Sejuani. This commonly reflects different amounts of tankyness, yet it can also hint that the one champion has less agility and thus is not able to flee from further damage when engaged or poked.
Both LoL champions are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Master Yi usually wins when playing against Sejuani, with a 52.4% win rate. Thus, Master Yi makes a good counter for Sejuani.
While Master Yi does have a higher winrate than Sejuani, when on opposite teams, Master Yi also has a greater learning curve that makes him a more difficult character to pick up and master. You should be be fine when picking Master Yi into Sejuani.
Furthermore, Master Yi also has only a small amount of CC and other utility, a similar amount to Sejuani. This makes her just as valuable during teamfights, especially when facing champions with a lot of burst damage.
While there is not one best champion overall in League of Legends, in Master Yi vs Sejuani matchups, Master Yi is the better champion with a noticably higher win rate, similar champion depth, and a similar amount of utility to help out your allied champions during team fights.
Master Yi is a good counter to Sejuani. Focus your actions on keeping up your gold income and clearing objectives. If you do that, you should be able to stand on your own as Master Yi against Sejuani.
If you would like to truly master Master Yi to counter Sejuani during both the early game and mid / late game phases of League of Legends, you should keep reading to gather a few extra tips and tricks for this matchup. If you mind the build and stats presented above, you should increase your win rate significantly and be that much closer to League of Legends pro players.
Master Yi typically racks up a similar amount of CS as Sejuani. Champions who on average don't acquire much CS typically don't need much CS to be valuable teammates, such as sup champs. They are capable of scaling properly off of their skills, stats, and first items alone. Yet, champs with large amounts of CS, such as hyper-carries, usually require many items to be effective. In either case, try to surpass the values reported on this page to do well.
The best items to have in your Master Yi versus Sejuani build include Experimental Hexplate, Blade of The Ruined King, and Kraken Slayer. When Master Yi incorporated at least these three pieces in his build, he did significantly better against Sejuani than with most other common counter builds. In fact, Master Yi had an average winrate of 52.4% when countering Sejuani with this counter build.
To have the greatest chance of annihilating Sejuani as Master Yi, you should take the Lethal Tempo, Triumph, Legend: Alacrity, Coup de Grace, Eyeball Collection, and Treasure Hunter runes from the Precision and Domination rune sets. Of all the rune builds that we analyzed for Master Yi vs Sejuani clashes, this mixture of runes resulted in the highest win rate. Moreover, these runes gave a 52.4% win rate overall.
If you would like to get Master Yi versus Sejuani tips and matchup stats and build suggestions for a an individual player tier, feel free to select one from the selection menu provided above. If viewing for the first time, the stats and build suggestions given are calculated using all matches with data with these champions.