What Is Lethality In League Of Legends? How does It work?

Have you ever been in a situation where Assassin caves used so quickly that it is too fast to be true? Within a blink of the eye, you are dead. You must have seen that The Assassin’s scoreboard shows lethal items that he bought. If you are a newbie, you must be wondering what lethality in League of Legends is? 

If you don’t know what lethality is, you are missing out a lot. It is one of the most crucial stats to have on your scoreboard. Through this article, we are here to make you understand what lethality League of Legends is? How do you calculate lethality? What are the weapons that you get for lethality? What Champions work the best for lethality? Etc. Make sure to check out how to appear offline in LoL.

If you wish to know everything about the above said situations follow the content to the end. 

In the year 2017, the concept of lethality in replacement to armour penetration. Lethality gives the flat amount for armour penetration. It does not give you any percentage but a flat amount. Let us have a more comprehensive view of what lethality is. 

You are very well acquainted with the fact that in Moba games, there is a weapon called armour. It functions to protect the champion from attacks. It has a great ranking role when it comes to defending from the opponent. It is used on the Frontline champions for tanking. The strength of the armour varies from champion to champion. 

To break the Shield and get through the defending boundary, one needs to penetrate through the armour. When you reduce someone’s armour, you inflict it to a greater chance of being penetrated. The process of lowering armour protection is calculated by a flat amount called lethality. It is not possible without lethality. 

Various champions can adopt the power in different ways. Some Champions are more complementary to adopting the power. Similarly, some weapons are more suitable to take over the control of lethality. Came in 2017, the power has been popular in the recent past. Let’s have a look at how to calculate lethality. 

How To Calculate Lethality 

Lethality is not a flat value, but it progresses with the game. Consider a square that will start for very minimal weight, but you will go higher up with the play. The armour penetration will only increase with the course of the game and will not lose its effectiveness. 

There is a simple formula to calculate lethality and that is: 

Flat Armor Penetration = Lethality x (0.6 + 0.4 x level % 18)

It can be easily derived from the formula that lethality at level one would be around 60%. Consider putting 1 in place of the level value given in the procedure. It also shows that the value of lethality will only increase within the progression of the levels or the game. There is no chance of a decrease. You can be sure that the effect will remain. 

In case you are in-game, you can always keep a check on your lethality simply by hovering upon them. This method was introduced by right to protect the players from any sort of discomfort. You also do not have to face any kind of in-game calculation. All you need to do is simply hover on them, and you will get the value of your lethality. 

The Best Items For Lethality 

When you look at the current meta description, there are a few items that are most suited for lethality:

  • Duskblade of Draktharr
  • Eclipse
  • Edge of Night
  • Sanguine Blade
  • The Collector
  • Prowler’s Claw
  • Serpent’s Fang
  • Serrated Dirk
  • Umbral Glaive
  • Youmuu’s Ghostblade

The Best Champions For Lethality 

When you look at lethality, a few champions will have the most benefit from Lethality. It is not difficult to guess that assassin’s and spiders are the two Champions that will benefit the most from lethality. Some of the champions are:

  • Zed
  • Pyke
  • Jarvan IV
  • Darius

You should also note that there are four types of calculations present to calculate armour reduction. These are the percentage of armour reduction, armour penetration, fixed armour reduction, and lethality. To make it more convenient for you, we will explain each one of them. 

Percentage Of Armour Reduction 

Consider a real-life situation. When you have armour by a substance, it will lose a little part of it. This will, in turn, reduce the effectiveness of the armour. Percentage of armour reduction works on the same line. When you have the armour with a hard solid substance, it will lose some of its effectiveness due to the physical damage. 

In such case you can calculate the h value by the formula: Current armor = total – (percentage) = 100 – (100 x 24/100) = 100 – 24 = 76

Percentage Armour Penetration 

This armour reduction uses a slightly different technique than the other three. The reduction value does not depend on the specific champion’s skill, weapon, or physical damage. In this technique, a specific champion will inflict a little damage reduction on the armour. To calculate the value of the same, the formula given below applies :

Current armor = total – (percentage) = 100 – (100 x 0.25 / 100) = 100 – 25 = 75

Fixed Armor Reduction

You can easily get by the name that fixed armour reduction reduces the effectiveness of the enemy by a fixed value. Hence, if you decline the weight by 30%, the damage will be cut off by 30%. In this process, the value can go negative. Do not have the idea that it cannot go below zero because it can. 


Lethality is different from the above three. What little they will do will not exceed beyond 0, nor does it depend upon the webinar the champion it is inflicted on. On the other side, it will depend on the champion who is giving the armour reduction. It also depends on the level at which the champion is. The formula to calculate the same is:

Fixed Armor Penetration = lethality x (0.6 + 0.4 x level / 18) = 21 x (0.6 + 0.4 x 10/18) = 21 x (0.6 + 0.4 x 0, 55) = 21 x (0.6 + 0.22) = 21 x 0.82 = 17.2

The Difference Between Armour Penetration And Lethality 

Early in the article be here already mentioned that lethality was introduced as a substitute to armour penetration. But do you ever wonder that how both of them are different? 

The answer is simple, and that is little. It is a flat value while armour penetration is a percentage. For example, consider a champion named Vayne. While he can have a 40% armour penetration but he will only have 40 lethalities. 

Lethality will help you in a situation where the enemy does not have any armour. On the flip side, when the enemy has armour, lethality means and penetration will work for you. 

Way To Counter Lethality 

You know that lethality is calculated by a single blow hit. It is a one time shot. To counter a try to build a stack of such items that help it add the damage. Some of these items are like death dance. 

The Final Words 

We hope that after reading the article on your doubts regarding lethality are cleared. We try to give you a holistic view about not only what lethality means but how to calculate it and how is it different from armour penetration. Do you use the information Above and your game! 

Tisey Soft
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