League of Legends Runes Builder

Build your custom Runes with our Runes Builder for League of Legends

Runes Reforged in League of Legends is a system that allows you to customize your champion with different Runes, adding or improving champion abilities and/or stats.

This system is splitted into three important parts: Primary Path, Secondary Path and Stats Shards, each one of them containing a number of slots that you will have to fill with runes that are unique to the selected path. The first slot in the Primary Path is called Keystone Rune Slot and is the most powerful of these slots.

After you have selected your Primary Path you can select two Runes from the Secondary Path you have choosen. This Secondary Path doesn't provides you with a Keystone Rune unlike the Primary Path.

The Stat Shards allows you to select runes that provides you with plain statistics, allowing you to further customization of your champion.

Below you will find our Runes Reforged simulator that allows you to build your custom Runes and share your build with others. Useful if you are a content creator or want to exchange some information with other players!


Become a legend

Press the Attack

Hitting an enemy champion with 3 consecutive basic attacks deals 40 - 180 bonus adaptive damage (based on level) and makes them vulnerable, increasing the damage they take by 8% - 12% from all sources for 6s.

Fleet Footwork

Attacking and moving builds Energy stacks. At 100 stacks, your next attack is Energized

Energized attacks heal you for 10 - 100 (+0.4 Bonus AD, +0.3 AP) and grant 20% Move Speed for 1s.

Healing from minions is 10% effective for Ranged Champions, and 20% effective for Melee Champions.

Lethal Tempo

1.5s after damaging a champion gain 40 - 110% Attack Speed (based on level) for 3s. Attacking a champion extends the effect to 6s.

Cooldown: 6s

Lethal Tempo allows you to temporarily exceed the attack speed limit.


Basic attacks or spells that deal damage to an enemy champion grant 2 stacks of Conqueror for 4s, gaining 2-4 Adaptive Force per stack. Stacks up to 12 times. Ranged champions gain only 1 stack per basic attack.

When fully stacked, heal for 9% of the damage you deal to champions (6% for ranged champions).
Improved attacks and sustained damage
Hunt and eliminate prey


Hitting a champion with 3 separate attacks or abilities within 3s deals bonus adaptive damage.

Damage: 30 - 180 (+0.4 bonus AD, +0.25 AP) damage.

Cooldown: 25 - 20s

'We called them the Thunderlords, for to speak of their lightning was to invite disaster.'

Dark Harvest

Damaging a Champion below 50% health deals adaptive damage and harvests their soul, permanently increasing Dark Harvest's damage by 5.

Dark Harvest damage: 20-60 (based on level) (+5 damage per soul) (+0.25 bonus AD) (+0.15 AP)
Cooldown: 45s (resets to 1.5s on takedown)


Enchants your boots with the active effect 'Predator.'

Gain increased Movement Speed, ramping up to 60% Movement Speed over 1 seconds, while chasing enemy champions. After ramping up, damaging attacks or abilities to champions end this effect, dealing 40-120 (+0.2 bonus AD)(+0.1 AP) bonus adaptive damage.

Cooldown: 90s-60s.

Hail of Blades

Gain 110% Attack Speed when you attack an enemy champion for up to 3 attacks.

No more than 3s can elapse between attacks or this effect will end.

Cooldown: 12s out of combat with champions.

Attack resets increase the attack limit by 1.
Allows you to temporarily exceed the attack speed limit.
Burst damage and target access
Unleash destruction

Summon Aery

Your attacks and abilities send Aery to a target, damaging enemies or shielding allies.

Damage: 10 - 40 based on level (+0.1 AP and +0.15 bonus AD)
Shield: 35 - 80 based on level (+0.25 AP and +0.4 bonus AD)

Aery cannot be sent out again until she returns to you.

Phase Rush

Hitting an enemy champion with 3 attacks or separate abilities within 4s grants 15 - 40% Movement Speed based on level and 75% Slow Resistance.

Movement speed is increased to 30 - 60% for Melee champions.

Duration: 3s
Cooldown: 10s - 30s

Arcane Comet

Damaging a champion with an ability hurls a comet at their location, or, if Arcane Comet is on cooldown, reduces its remaining cooldown.

Adaptive Damage: 30 - 100 based on level (+0.2 AP and +0.35 bonus AD)
Cooldown: 20 - 8s

Cooldown Reduction:
Single Target: 20%.
Area of Effect: 10%.
Damage over Time: 5%.
Empowered abilites and resources manipulation
Live forever

Grasp of the Undying

Every 4s in combat, your next basic attack on a champion will:
  • Deal bonus magic damage equal to 4% of your max health
  • Heals you for 2% of your max health
  • Permanently increase your health by 5

Ranged Champions: Damage, healing, and permanent health gained reduced by 40%


Guard allies within 350 units of you, and allies you target with spells for 2.5s. While Guarding, if you or the ally take more than a small amount of damage over the duration of the Guard, both of you gain a shield for 1.5s.

Cooldown: 70 - 40 seconds
Shield: 50 - 130 + 15% of your ability power + 9% of your bonus health
Proc Threshold: 90 - 250 postmitigation damage


After immobilizing an enemy champion, increase your Armor and Magic Resist by 35 + 80% of your Bonus Resists for 2.5s. Then explode, dealing magic damage to nearby enemies.

Damage: 25 - 120 (+8% of your bonus health)
Cooldown: 20s

Resistance bonus from Aftershock capped at: 80-150 (based on level)
Durability and crowd control
Outwit mere mortals

Prototype: Omnistone

Periodically grants a single use of another random keystone.

5-3 second cooldown between using a keystone and gaining the next. (9-7 seconds for ranged users)

After 40 seconds of not using a given keystone, Omnistone will re-roll when you exit champion combat.
Aftershock is only available to champions who have learned a basic spell that can trigger it.
Predator is only available to champions who have already purchased boots.

Unsealed Spellbook

Swap one of your equipped Summoner Spells to a new, single use Summoner Spell. Each unique Summoner Spell you swap to permanently decreases your swap cooldown by 25s (initial swap cooldown is at 5 mins).

Your first swap becomes available at 6 mins.

Summoner Spells can only be swapped while out of combat.
After using a swapped Summoner Spell you must swap 3 more times before the first can be selected again.

Glacial Augment

Basic attacking a champion slows them for 2s. The slow increases in strength over its duration.
  • Ranged: Ranged attacks slow by up to 30% - 40%
  • Melee: Melee attacks slow by up to 45% - 55%

Slowing a champion with active items shoots a freeze ray through them, freezing the nearby ground for 5s, slowing all units inside by 60%.

Cooldown: 7-4s per unit
Creative tools and rule bending

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