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LeBlanc Build Guide by drakon136

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League of Legends Build Guide Author drakon136

LeBlanc - The Deceitful Assassin

drakon136 Last updated on January 28, 2014
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Ability Sequence

Ability Key Q
Ability Key W
Ability Key E
Ability Key R

Not Updated For Current Season

The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.



Offense: 21

Legendary Guardian

Defense: 9


Utility: 0

Table of Contents

Summoner Spells
Ability Sequence Order
Pros / Cons
Ability Explanations


Mirror Image
Sigil of Silence
Hello, citizens of MOBAFire. My name is drakon136, and this is my guide to LeBlanc. LeBlanc is a very powerful and mobile assassin, capable of turning an enemy into dust faster than any other and getting away without a scratch.

SPECIAL THANKS: A huge thanks to jhoijhoi for the template, which you can find here. I am planning on creating my own template to use instead of this one, but I was too lazy.

Pros / Cons


+ Incredible single-target burst
+ Very strong early- to mid-game
+ Low skill floor (easy to pick up and learn)
+ Very high mobility
+ Powerful soft CC
+ Snowballs very hard and easily
+ Godly waveclear with items

First and foremost, I feel that I should mention LeBlanc's incredible burst. There are very few champions that can even claim to match her burst, let alone surpass it. However, even fewer of those champions can keep up with her excellent mobility. Her two possible gapclosers and ability to jump right back to where she just was makes her very difficult to pin down and kill. Last but not least, her waveclear. Although she doesn't have very good waveclear early, she can effortlessly destroy an entire wave with two spell casts.

- Falls off hard late-game
- Very high skill cap (difficult to master)
- Almost entirely single-target
- Very squishy
- Weak early waveclear
- Waveclear requires use of escapes
- No hard CC; only silences and snares

Although she has godly burst damage, this is balanced out by its single-target nature, which means she falls off hard late-game. Compare her to an AP version of Pantheon in this regard, only not quite as extreme in either area. Secondly, she is squishy. This applies to most mid-laners, but it still deserves a mention. Last but not least, her waveclear. No really, her early waveclear is really bad, and it makes pushing to gank quite difficult. It really doesn't help that she is forced to use her only escape method to clear waves.



On AP assassins such as LeBlanc, there is really only one viable mastery setup you can take. 21 / 9 / 0, although weaker than it was in Season 3, is still the best setup you can take on almost all AP champions, and mid-laners in general. The most important masteries in this tree are Feast , Arcane Mastery, Archmage , Devastating Strikes , and Havoc .



Greater Quintessence of Ability Power

Greater Mark of Magic Penetration

Greater Glyph of Magic Resist

Greater Seal of Armor

  • Greater Quintessence of Ability Power: These are the basic quintessences for any AP mid-laner. The additional AP early on is invaluable, noticeably increasing your damage early.
  • Greater Mark of Magic Penetration: These are also the standard marks for an AP champion. The magic penetration gives more damage than the AP marks would give, and scale fairly well into the late-game compared to other flat runes.
  • Greater Glyph of Magic Resist: Again, nothing groundbreaking here. Early magic resist is almost needed to survive against mages in lane. However, if you are facing an AD champion in lane that does little to no magic damage, you can instead take Greater Glyph of Scaling Magic Resist.
  • Greater Seal of Armor: We end off with yet another standard set of runes, and definitely the most important. If the early magic resist from your glyphs aren't needed to survive in lane, the armor from these seals are. Don't contest it, there is no superior option.

Summoner Spells

Flash: There is really very little explanation I can give for Flash. An instant blink, no matter what the range, is huge. Flash is easily the best summoner spell in the game, and a requirement on all but a few champions that prefer Ghost. blacktext blacktext blacktext blacktext blacktext blacktext blacktext blacktext blacktext blacktext blacktext blacktext blacktext blacktext

Ignite: Another strong summoner spell for a mid-laner. It hits your target with a Grievous Wounds effect, which reduces their healing from all sources by 50%, while also dealing a good amount of true damage over the duration. Although it is not very strong late-game against most champions, this is balanced out by its strength early. blacktext blacktext blacktext blacktext blacktext blacktext

Teleport: Teleport is a niche summoner spell on an assassin like LeBlanc that can replace Ignite. Although Ignite is generally preferred on assassins, Teleport is a viable option if you wish to quickly head down to other lanes to gank, or facing an opponent with a semi-global teleport ability, such as Twisted Fate or Nocturne, allowing you to countergank them very easily.

Ability Explanation

mirror image sigil of silence

  • mirror image Mirror Image: Okay, so apparently I was wrong about this passive. I thought the clone was uncontrollable, but this is not the case! As you can control the clone it creates, this is actually a fairly strong passive if you can make the enemies think the clone is actually you. This is much easier to do in low elo, where it sometimes requires no effort at all.
  • sigil of silence Sigil of Silence (Q): This is LeBlanc's standard nuke, and a special one at that. When you hit the enemy with it, they are marked by it. Detonating the mark with another spell will silence them and deal even more damage. Overall, this is a very strong nuke.
  • Distortion (W): Distortion is a very good gapcloser. It has pretty good range, a good cooldown at max rank, and you can even jump back to where you Distortioned from a moment ago. To top it off, it even does high damage in an area around the landing point, allowing you to easily clear waves once you have items. This spell is generally used to detonate Sigil of Silence early-game, and is often used to detonate Sigil of silence's Mimicked form once you have it.
  • Ethereal Chains (E): Despite being the most unloved of LeBlanc's abilities, Ethereal Chains is still deceptively strong. It actually has the highest AP ratio of her basic abilities, which means it does very high damage late-game. As if that wasn't enough, it also slows whoever you hit with it, and snares them after a moment if you stay close. This can be used to detonate Sigil of Silence if needed, but it is not recommended, as Distortion is more reliable.
  • Mimic (R): Mimic is what makes LeBlanc, well, LeBlanc. On use, it recasts your previous spell with no mana cost, but it deals different damage. This can give LeBlanc incredibly high burst damage, two powerful gapclosers to catch up to or escape from an enemy, or two possible snares to stop opponents in their tracks. Importantly, the Mimicked Sigil of silence can detonate the basic sigil of silence and vice-versa.

Ability Sequence Order

Ability Sequence
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

> > sigil of silence >
The skill order is fairly simple. Mimic is taken whenever possible, as it is your ult. Distortion is maxed first, as although it has the lowest base damage of the three basic spells, it is easily the most reliable, and can also be used for waveclear. The cooldown also massively decreases as well. sigil of silence is maxed second, as its damage scales up very well, and is more reliable than Ethereal Chains. Finally, Ethereal Chains is maxed last.


A fairly strong early-game purchase for LeBlanc, although it delays your core items a bit, so it is an optional pickup. The main reason for picking it up is the magic penetration, which is very powerful early when combined with Sorcerer's Shoes, as most champions will have very little magic resist. The extra health and AP are just icing on the cake.

The standard boots for almost all mages, and for very good reason. The magic penetration is very strong early-game; as I said previously, most champions will have very little magic resist at this point.

Easily one of the strongest items a burst mage can pick up. Deathfire Grasp's active adds more to your burst than any other item at this point in the game, even more than Rabadon's Deathcap. The percent max health damage and magic damage amplification are huge at all stages of the game. To top that off, it even gives 10% cooldown reduction and a whopping 120 AP! There is really no reason not to pick this up as soon as possible.

This is definitely the strongest followup item you can purchase. A relatively early Void Staff (coupled with the magic penetration you may have picked up earlier) ensures that magic resist will have very little effect on your burst at all stages of the game.

This silly-looking hat makes a very nice addition to your core items. Seriously, with your other two "big" items, Rabadon's Deathcap is just HUGE. Along with the 120 flat AP it gives, the 30% increase to all of your AP is a massive bonus, and will significantly increase your damage output.

This... this is probably the best item in the game. Seriously, nothing can really compete with it for that title. It gives an incredible amount of damage for a defensive item, along with some armor and a godly active that essentially grants near-invulnerability for 2.5 seconds. Seriously, don't debate this item. Just get it.

Here comes the beginning of the situational items. Although it is generally inferior to other items that grant more raw AP, Liandry's Torment is a very good purchase if you are against a very tanky team, and for some reason cannot reliably get to the enemy ADC to kill them.

Ooh, now this item is both fun to pick up AND risky as hell. When fully stacked, it gives the most AP of any item, bar none. Not even a plain Rabadon's Deathcap gives as much AP. Along with this, it gives a whopping 15% CDR when fully stacked. But, on the other hand, you lose a third of those stacks when you die, making it a very dangerous pickup. But, if you are snowballing very hard early and desperately need to carry your team, this is a good purchase.

I don't particularly like this item on LeBlanc, but it has is uses. The AP it gives is nice, but lower than the "big three" AP items. The passive is very nice as well, but the problem with it is that it applies BEFORE the penetration from Void Staff. However, the magic resist makes it quite good, so I suggest considering it against another strong burst mage, such as Kassadin, Diana, or another LeBlanc.

For a long time, Guardian Angel has been considered the defensive item, and for good reason. It is one of three items on Summoner's Rift that gives both armor and magic resist, and one of two finished items on the map that does so. However, the main reason for its purchase is the passive. The revival passive is incredibly powerful if you are killed in a teamfight, but not too strong if you get caught out alone. As an assassin, there is a very good chance that you will die in a teamfight, so this is very helpful to prevent that. However, once the passive goes down, I suggest selling it for a different defensive item.


Teamfighting as an assassin is a fairly simple job. Bide your time until you can safely take down the most threatening member of the enemy team, then turn them to dust while occasionally throwing out quick damage and CC whenever you can do so safely.

However, one cannot always do this! In some situations, the most threatening enemy is either too tanky for you to kill, cannot be reached safely, or just cannot be killed for whatever reason. If this is the situation, there is one other thing you can do, and that is peel for your ADC! With damage!

Well, your CC definitely helps, but LeBlanc mainly peels with her incredible burst; after all, the strongest form of CC is death. Even if you cannot kill whoever is jumping on your ADC, you can at least take out a massive chunk of their health, allowing the rest of your team to finish them off fairly easily. Alternatively, your CC from Sigil of Silence and Ethereal Chains, along with their Mimicked forms, should be able to stop most carry-divers in their tracks and prevent then from shredding your carry. Well, at least for a little bit.


Thank you for taking the time to read through my guide on LeBlanc. I hope you enjoyed it! Additionally, please vote on this guide and leave feedback if you have time to.

SPECIAL THANKS: A huge thanks to jhoijhoi for the template, which you can find here. I am planning on creating my own template to use instead of this one, but I was too lazy.