One for All

One for All is a limited time game mode in League of Legends. Players battle in a 5v5 match in Summoner's Rift map similar to Classic mode, with the only difference being that all champions on each team are the same. The mode was first made available from 2013-11-02 to 2013-12-02. It is occasionally relaunched to align with April Fools' Day.

One for All games could also be created and played as a Custom Game at one point with the map choice not being limited to Summoner's Rift; all other maps could be chosen.

Description

The process for selecting champions in One for All is called Vote Pick, which follows the Custom Game Iteration of Draft Pick.

After banning 6 champions, each player will have a chance to vote with their team and decide which champion will be played by the whole team. Players may pick any champion in their team's pool of champions (owned and free). If all players or the strict majority pick (4 votes) the same champion, then the whole team has to play as that champion. In the case that no champion won a clear majority, a random champion will be assigned from the pool of votes.

2020 version

Starting from the 2020 version, the majority pick (3 votes) no longer automatically wins the vote, allowing for players who are against the odds to have a fighting chance. 4 votes now automatically win the vote.

Note

Karthus and Teemo were disabled in this mode in the past, and were accidentally enabled in 2015. They could only be played in custom matches.

In the V8.15 iteration, One for All was around 12.5% of hours around its end.^[1]

Champion Mechanics

Due to the nature of teams in One for All, some champions and their abilities work differently in the mode.

The following champions apply debuffs to enemies that interact with their abilities in some fashion. If using the same champion, other players can gain these bonus effects even if they did not originally apply the debuff.

Poison (triggers bonus damage and healing for Cassiopeia's Twin Fang)
Anivia's Chilled status (triggers double damage from Frostbite)
Brand's Blaze (enhances all other Brand players' abilities)
Darius' Hemorrhage
Diana's Moonlight (triggers cooldown refresh for Lunar Rush)
Kennen's Mark of the Storm (allows usage of Electrical Surge)
Lucian's Ardent Blaze
Sejuani's Permafrost
Shyvana's Flame Breath
Twitch's Deadly Venom
Urgot's Corrosive Charge (allows lock-on when using Purge)
Xin Zhao's Challenge (renders the target immune to Crescent Guard's knockback)

The following champions apply marks to enemies. If using the same champion, these marks can be triggered by other players.

Fiora's Duelist's Dance and Grand Challenge (cannot be stacked on one champion)

Gnar's Hyper
Katarina's Bouncing Blade
Kennen's Mark of the Storm
LeBlanc's Sigil of Malice
Lux's Illumination
Varus' Blighted Quiver
Vayne's Silver Bolts
- Vayne switching targets will remove all the stacks including the ones applied by other teammates.
Vi's Denting Blows
Zilean's Time Bomb
- Re-applying Time Bomb to a debuffed enemy will immediately detonate the previous debuff, friendly or enemy.

The following champions create objects on the field. If using the same champion, these can be interacted with by other players.

Akali's Twilight Shroud
- Grants stealth to friendly Akali players.
Jarvan IV's Demacian Standard
- Can be targeted for friendly Jarvan players for Dragon Strike's dash/knockup.
Jayce's Acceleration Gate
- Can enhance any friendly Jayce player's Shock Blast.
Nocturne's Duskbringer
- The Dusk Trail grants stat bonuses to any friendly Nocturne player.
Singed's Poison Trail
- Multiple poisons can stack.
Syndra's Dark Sphere
- Can be manipulated by any friendly Syndra player's abilities.
- Unleashed Power casts will utilize up to 4 nearby friendly Dark Spheres, increasing its damage.
Thresh's Damnation
- Souls can be collected by any friendly Thresh player.
- Multiple souls can spawn from a single enemy death if there are multiple Thresh players nearby.
Trundle's Frozen Domain
- Grants stat bonuses to any friendly Trundle player.
Yuumi's You and Me!
- Multiple Yuumis can attach to any friendly Yuumi.
Ziggs' Satchel Charge
- Will apply the extended knockback effect to any friendly Ziggs player.
Zoe's Spell Thief
- Multiple enemy minions per wave spawn with random Spell Shards. Any friendly Zoe player can collect the Spell Shards, regardless of which Zoe player kills the minion.
Zyra's Rampant Growth
- Seeds can be grown by any friendly Zyra players' abilities.
- Each Zyra player retains their own limit on seeds placed on the field.

Mode-Specific Changes

This table extracts the data from Module:ChampionData/data and Template:map_changes/data/ofa.

Champion	Damage dealt	Damage received	Other effects
Akali	+5%	-3%
Alistar		-3%
Amumu		+5%
Aphelios	+8%		Weapons of the Faithful Binding Eclipse expunges all enemies affected by Gravitum from any Aphelios.
Aurelion Sol		-5%
Azir	+8%	-10%
Bard	+13%	-13%
Blitzcrank	+6%	-3%
Brand		+3%
Braum	+5%	-8%
Cho'Gath		+4%
Darius	-10%	+5%
Diana	-5%
Dr. Mundo	-5%	+5%	Healing done reduced by 10%.
Draven		-5%	Spinning Axe Axes can be picked up (stolen) by allied Dravens. This event also prompts one of a few unique voice lines. The same can be done in blind pick in games where there are two Dravens.
Ekko	-5%		Parallel Convergence Parallel Convergence will interact with all allied Ekkos.
Elise	+5%	-5%
Evelynn	+7%	-7%
Fiddlesticks	+3%	-5%	Terrify The fear-immunity is shared across all Fiddlesticks.
Fiora			Grand Challenge Attempting to cast Grand Challenge on a target that is already affected by it will inform the player that it "Cannot be stacked" once Fiora is in cast range.
Gangplank	+5%	-10%
Garen	-5%
Heimerdinger	-3%
Illaoi	-8%	+5%
Ivern	+5%	-5%
Janna	+3%
Jarvan IV	-5%
Jax	-5%
Kai'Sa	+3%
Katarina		-5%
Kayle	-5%	+5%
Kindred		-5%
Lee Sin		-5%
Lillia	+3%	-3%
Malphite	-5%		Ground Slam The cripple can be applied more than once; it can be stacked by multiple Ground Slams.
Maokai		+5%
Mordekaiser	-5%
Nami	+3%	-5%
Nidalee	+7%	-5%
Nocturne	-5%
Nunu & Willump	+3%	-5%	Healing done increased by 5%.
Pyke		-5%
Qiyana	+5%	-5%
Quinn			Harrier Quinns may only trigger the bonus damage from their own Vulnerable debuffs. Note that all active debuffs are visible to all Quinns and are not easily distinguished unless its appearance is modified by a skin. Enemies can have multiple Vulnerable debuffs active on them at a time. Heightened Senses Quinns will gain the passive bonus for attacking a Vulnerable enemy versus enemies marked by any Quinn. Note that only the Quinn who applied the mark can consume the mark for bonus damage. One Quinn can apply the mark and then deliberately not trigger the mark to allow their allies to continually trigger the passive bonus.
Rek'Sai	+5%	-5%
Rell	+5%
Rengar		-5%
Ryze	+3%
Senna	+5%	-10%	Absolution Wraiths are not shared. Weakened Soul debuff application is individually tracked and does not interact among multiple users.
Sett	-5%
Shen	-5%
Singed			Poison Trail Poison Trail stacks with one another.
Soraka	+3%	-3%	Healing done increased by 10%.
Syndra			Unleashed Power Unleashed Power will grab all nearby spheres, regardless of whose they are. The damage is still capped at 7 spheres, which appears to be the first 7 spheres. Additionally spheres will visually collide with the target but deal no damage.
Taliyah	+5%	-10%
Taric		-8%
Thresh	+15%	-15%
Trundle	-5%	+5%	Subjugate Subjugate stacks if cast on the same target more than once by other sources.
Urgot	-5%
Vi	-5%
Volibear	-10%	+7%
Wukong	-5%	+5%
Xin Zhao	-3%
Yorick	-10%	+5%
Yuumi	+15%	-20%
Zed			Death Mark Enemies can only have a single Death Mark on them at a time. Subsequent Death Marks will delete any previous marks, removing all accumulated damage and preventing the detonation. Individual Death Marks will track the damage dealt by any Zed.
Ziggs		-5%
Zilean		-5%	Time Warp The movement speed boost stacks if Time Warp is cast on the same target more than once by other sources.
Zoe	+10%	-10%

Archangel's Staff

Uses the Quick Charge version.

Manamune

Uses the Quick Charge version.

Tear of the Goddess

Uses the Quick Charge version.

Other Changes

Turrets
- Outer turret health reduced to 4000 from 5000.
- Backdoor damage reduction increased to 90% from 66%.
- Turrets have plates with URF-style health rules (scaling health rather than even increments). The plates fall off at 8:00 and give 50% of resistances compared to regular SR. They'll also give 130% more gold than in regular SR.
Structures
- Champions begin dealing increased damage to structures at 12:30, scaling up to +25% at 25:00.
- Non-champion units deal 25% increased damage to structures.
General
- Champions gain the One for All Buff ^e
  - Effects:
    - Champions gain 70 summoner spell haste.
    - Champions gain 40 movement speed out-of-combat.
- Champions gain the Champion Balance Buff ^e
  - Effects: (only when applicable):
    - This unit deals X% of its normal damage.
    - This unit receives X% of its normal damage.
- Champions have a faster and longer-lasting Homeguard at the beginning of the game.
- Champions start with 950.
Monsters
- Jungle monsters give 15% bonus gold and experience.
- Baron Nashor grants a Eye of the Herald on kill.
- Baron Nashor spawns at 15:00 and has a 4:30 respawn time.
- Rift Herald first spawns at 6:00 and has a 4:30 respawn time.
- Elemental Drakes spawn at 3:30 and have a 3:30 respawn time.
- Elder Dragon has a 4:30 respawn time.
Minions
- Minion gold and XP values are multiplied by roughly 130%.
- Cannon minions begin spawning every other wave at 8:00 and then every wave at 19:00.

Summoner spell haste
Base cooldown ▶	420s ()	300s ()	240s ()	210s ()	180s ()	90s ()	20s ()
▼ Haste	420s ()	300s ()	240s ()	210s ()	180s ()	90s ()	20s ()
70 ()	247.06s	176.47s	141.18s	123.53s	105.88s	52.94s	11.76s
82 ()	230.77s	164.84s	131.87s	115.38s	98.9s	49.45s	10.99s
88 ()	223.4s	159.57s	127.66s	111.7s	95.74s	47.87s	10.64s
100 ()	210s	150s	120s	105s	90s	45s	10s

One for All: Mirror Mode

"Last time you tangoed with One for All, you could nuke the enemy team with five Final Sparks or chain together a series of Unstoppable Forces. Some teams even achieved immortality with back-to-back-to-back-to-back-to-back Chronoshifts.

Now it's time for One For All: Mirror Mode! We've moved the action to the Howling Abyss and changed the rules so players on both teams clash with the same champ. Soon you'll really play pinball with Monsoons, dodgeball with Dark Spheres or hide-and-seek with ten times the Noxious Traps.

For this iteration of One For All, champ select is determined by the combined nominations of both teams. A vote tracker shows the nominated champions - if one champ achieves a strict majority, they're chosen. If not, we base the choice on a weighted random from all the nominated champs, so if four people vote for Amumu, three people pick Blitzcrank and the last three all pick different champs; there's a 40% chance everyone plays Amumu, a 30% chance everyone plays Blitz and a 10% chance for each of the remaining champs!

After playing your first game, you'll permanently unlock the One For All icon (it'll take a few days to hit your account). Additionally, we've added a feature to One For All: Mirror Mode that allows you to purchase a Battle Boost for your team during champ select. If you purchase one (150 RP), you'll temporarily unlock all the chosen champ's currently available skins for yourself and your allies. Everyone on your team also gets a one-game 100 IP boost!

This game mode was inspired by feedback from you guys, so let us know what you think! One For All: Mirror Mode will be live from May 29 through June 8 and we'll be hanging out on the Community Beta looking for your thoughts and awesome ideas!"^[2]

Trivia

The name of the mode, One for All, is a reference to the famous phrase "all for one, and one for all" which was popularized by The Three Muskateers.
The icon for the in-game One for All Buff tooltip is reused from pre-rework Fiora's Burst of Speed ability.
The icon for the in-game Champion Balance Buff tooltip is reused from the item Golden Transcendence.

Media

Related Music

LoL Login theme - Chinese - 2014 - One for All

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