Spreading out Hextech Micro-Rockets leads to more reliable damage and more efficiency against multiple targets, but focusing it creates the biggest impact.
The success of Electron Storm Grenade is very important to Heimerdinger's survival. The slow and stun both are capable of keeping enemies in place long enough to punish them, but it is also the first line of defense against a surprise attack.
Turret placement can be a deciding factor in a battle. Against most enemies turrets are best when they can support each other, but if the enemy has a lot of area of effect damage your turrets can be destroyed quickly. Placing turrets in brush can lead to a surprise attack in your favor.
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 shown here clarify some vital Heimerdinger versus Sejuani matchup statistics that may help us appreciate the differences and similarities between the pair. As an example, Heimerdinger’s KDA ratio ([kills + assists] / deaths) of NaN is more than Sejuani’s ratio of NaN, indicating that Heimerdinger may be more central to his team's team fighting capacity than Sejuani..
Heimerdinger often has a similar longest killing spree as his enemy does. Commonly, he takes less damage than Sejuani. This is usually reflective of different amounts of tankyness, yet it can also hint that the one champion has less mobility and thus is unable to kite away from additional harm when poked or engaged.
Both LoL champs are great champions. Both have their strengths, weaknesses, and counters. In League's current meta, Heimerdinger usually wins when playing against Sejuani, with a 55.1% win rate. Therefore, Heimerdinger makes a fantastic counter to Sejuani.
While Heimerdinger does have a much higher win rate than Sejuani, when they face off with one another, Heimerdinger also has a much greater learning curve that makes him a more time consuming champion to learn and master. You should be be fine when picking Heimerdinger into Sejuanias his relative depth means that you may not be able to reach his full potential without a lot of practice beforehand.
Furthermore, Heimerdinger has a good amount of CC and other utility, a similar amount to Sejuani. This makes her just as valuable during teamfights, especially when trying to counter champions with a ton of burst damage.
While there isn't one best champion overall in League of Legends, in Heimerdinger vs Sejuani matchups, Heimerdinger is the better champ with a noticably higher win rate, more champion depth, and a similar amount of utility to help out your allies during late stage team fights.
Heimerdinger is a great counter to Sejuani. You will do well by focussing your play on keeping up your gold income and taking out objectives. If you do that, you should hold your own as Heimerdinger against Sejuani.
To learn all of the intricacies of Heimerdinger in order to counter Sejuani during both the lane and mid / late game phases of League of Legends, you should continue reading to gather a few extra tips and tricks for this matchup. If you pay attention to the build and tips displayed here, you will increase your win rate by a lot and be closer to League of Legends pro players.
Heimerdinger usually picks up much more CS as Sejuani. Champions who on average don't acquire much CS typically don't have to have much CS to be valuable teammates, such as supports. These kinds of champions are capable of scaling well off of their skills, stats, and first items alone. Yet, champions with large amounts of CS, such as hyper-carries, usually have to have a lot of items to be effective. In either case, try to surpass the numbers displayed here to do well.
The top items to use in your Heimerdinger versus Sejuani build include Rylai's Crystal Scepter, Zaz'Zak's Realmspike, and Liandry's Torment. When Heimerdinger combined at least these three pieces in his build, he did a lot better vs. Sejuani than with most other typical builds. In fact, Heimerdinger had an average winrate of 55.1% when countering Sejuani with this counter build.
To have the highest probability of vanquishing Sejuani as Heimerdinger, you should equip the Arcane Comet, Manaflow Band, Absolute Focus, Scorch, Taste of Blood, and Treasure Hunter runes from the Sorcery and Domination rune sets. Out of all the rune sets players picked for Heimerdinger vs Sejuani counterpicks, this combination of runes resulted in the best win rate. Notably, these runes averaged a 55.1% winrate overall.
By default, tips, stats, and builds on how to beat Sejuani as Heimerdinger are presented for every ranked division. To filter the stats and builds to a specific rank, you can use the selection menu earlier on the page.