Patch Notes v26.21
ARAM Mayhem 4.0 Preview: New and Removed Augments & New Systems
ARAM Mayhem 4.0 preview updated for patch 26.21: 35 new augments, 13 confirmed removals, eight Headliners and audition unlock requirements.
What changes in 4.0?
ARAM Mayhem 4.0 is the music-themed Journey to Stardom update in patch 26.21. It adds 35 regular augments and eight Headliners; the official notes confirm 13 removals.
13 officially confirmed removals
The 26.21 notes list these 13 removals. Yowch, My Coins! is also absent from the game configuration, but is not listed in the notes, so it is excluded from this confirmed list. Older statistics retain their patch labels.
| Rarity | Augment |
|---|---|
| Silver |  Crit 'n Cast |
| Gold |  Spiritual Purification |
| Gold |  Critical Missile |
| Gold |  Hide on Bush |
| Gold |  Our Healing |
| Gold |  Combusting Interest |
| Prismatic |  Fan The Hammer |
| Prismatic |  Dropkick |
| Prismatic |  DropBear |
| Prismatic |  Poro Stampede |
| Prismatic |  Dimension Shift |
| Prismatic |  High Roller |
| Prismatic |  Ult Bot |
10 new Silver augments
| Augment | 26.21 effect |
|---|---|
 Sound Barrier | Shielding an ally grants Move Speed and Ghost decaying over 1.5 seconds. |
 Blue Barrier | Gain 200–450% of the Mana you spend as a Shield for 1.5 seconds. |
 Hands off the Talent | Attacks fired close to your max Attack Range deal bonus physical damage On-Hit. |
 Ultimate Recursion | Gain 50 Ultimate Ability Haste. |
 No Mana, No Problem | Mana from your items is converted into Ability Power. Increase your total Ability Power by 15%. |
 Gift of the Drowned | Bonus Health is converted into Lethality. Gain 10–25 Lethality. |
 Flow of Spirit | Casting the designated ability grants you Attack Speed for a duration. |
 Lich Brain | Gain ability power from a flat amount plus scaling with bonus health. |
 Fruitify | Takedowns create explosions of Fruit. Fruit restores Health and Mana. |
 Lonely Warrior | Gain Attack Speed, Armor, and Magic Resist for each nearby enemy champion. |
19 new Gold augments
| Augment | 26.21 effect |
|---|---|
 Get Jinxed | Replace a Summoner Spell with Get Jinxed! Get Jinxed!: Ride a rocket that explodes after hitting an enemy champion, structure, or wall. Enemies within the blast radius take physical damage. |
 Double Time | Damaging an enemy champion with 2 separate Abilities in quick succession deals magic damage and grants max Mana. |
 Salvation | Taking damage that would reduce your Health below 50% releases a shockwave which damages and Knocks Back nearby enemies and restores health to all allied champions in a large area around you. |
 Armored Impact | After casting an ability, your next attack deals bonus physical damage to nearby enemies, scaling with armor. |
 Tickle Monster | Attack Damage is converted into Attack Speed. Attacks deal bonus magic damage On-Hit. |
 Brass Blast | Replace a Summoner Spell with Brass Blast. Brass Blast: Charge up a large trumpet, Knocking Back and dealing magic damage to enemies. |
| Recoil | Your designated ability deals increased damage and knocks you backward. |
 The Boom and the Bass | After casting an Ability, your next Attack is faster, deals bonus magic damage, and grants you decaying Move Speed. |
 Weapon of Destiny | Your first Legendary Item becomes the Weapon of Destiny, gaining increased stats for every earned champion takedown. |
 BEES!!! | Periodically, your next Ability hit against an enemy champion launches a hive of Bees that explodes, Slowing and dealing magic damage over a short duration. Bees apply On-Hit effects. |
| CRIMSON COBALT | Enemy champions damaged by the designated ability are marked. Attacking a marked enemy deals bonus magic damage and reduces the cooldown of the designated ability. |
 Take'em Down Down Down | Attacks and Abilities deal bonus magic damage and apply stacks to enemy champions. At max stacks, consume them to deal missing Health magic damage and you restore Health based on the damage dealt. |
 Arcane Axiom | When a champion that you damaged within 3 seconds dies, refund a portion of your Ultimate Ability's total cooldown. |
| Jeweled Bracelet | The designated ability can critically strike. Gain 25% critical strike chance. |
 Sap Magic | Every 20 seconds, your next Attack deals bonus physical damage and restores Health On-Hit. Casting an Ability reduces this effect's cooldown. |
 Still Here | Gain Attack Speed and Lifesteal based on your missing Health. |
 Heavy Is The Crown | Gain Attack Damage, Ability Power, and Attack Speed but decreased Move Speed. Getting a takedown grants you a stack of Burden that increases this effect. Lose half your stacks on death |
 Upgrade Stormsurge | Stormsurge's Squall now always detonates in an area, dealing max Health magic damage. Enemy champions caught in the initial blast are marked by Squall. Gain 500 Gold. |
 Enchanting Butterflies | Healing or Shielding allied champions gathers Butterflies. After collecting 7 Butterflies, damaging an enemy champion fires all of them to deal Magic damage. |
6 new Prismatic augments
| Augment | 26.21 effect |
|---|---|
 Third Times the Harm | Every third consecutive Attack against an enemy champion deals true damage and permanently increases the damage dealt by this effect. |
 Big Shot | Gain 35% Critical Strike Damage and 25% bonus Attack Damage. 75% of your Attack Speed is converted into Critical Strike Damage. |
 Bouncing Bees | After casting an ability, your next Attack bounces to the nearest enemy QUEST: Bounce Attacks onto enemy Champions REWARD: Gain +30 Attack Damage and an extra bounce per Quest Level |
 Mosh Monster | Casting the designated ability grants 300–750 bonus health and slows nearby enemies for its duration. Takedowns permanently increase this effect. |
 Totentanz | Replace a Summoner Spell with A Dance with Death. A Dance with Death: Blink forward and become Unkillable. Get a takedown within 5 seconds or else YOU DIE. |
 Group Hug | Healing or Shielding an allied champion with the designated ability casts that spell again on 2 other nearby allied champions. |
Eight Headliner bands and their effects
Each match features a Headliner with music and rules affecting gold, augment choices or abilities. These eight match effects are separate from account audition missions.
| Band | 26.21 effect |
|---|---|
| K/DA | K/DA will occasionally throw Photocards to their loyal fans! Collect them all to gain an additional Augment and prove your devotion! |
| True Damage | Multi-kills, shutdowns, and destroying towers excite Minions, causing them to drop Anvils for the team that generated the hype! |
| HEARTSTEEL | HEARTSTEEL members have a chance to put Stickers on your Augments, granting you a bonus if you pick the Augment with a Sticker. Each member provides a unique bonus. |
| Pentakill | Empower one of your basic Abilities, granting it 20 Ability Haste, 10% increased damage, and 10% increased Healing and Shielding. At Level 18, Empower another Ability-- even your Ultimate! |
| Cafe Cuties | The Health Relic Aura restores an additional 20% missing Health and grants 25% bonus Move Speed that decays over 6 seconds. |
| Command Line | Your first reroll each Augment Selection also increases the rarity of the rerolled Augment. |
| Space Groove | Boogie down on the Dance Floor until the Disco Ball drops, granting everyone 1000 gold! |
| The Bee Band | Honey and Bees periodically fly across the map. Collecting Honey grants you and your team 25 gold and heals you for 20% of your maximum health. Being struck by a Bee damages you for 15% of your maximum health. |
Audition missions and rewards
Audition missions advance account progression and unlock rewards. Objectives must be completed within one match; reaching the Fame requirement opens another mission group. Worlds missions also require patch 26.22.
| Mission group | Unlock requirement | First mission |
|---|---|---|
| Pentakill | Available initially | Dance in the middle of the map |
| HEARTSTEEL | Reach 1,000 Fame | Snipe enemy champions 50 times in a game |
| True Damage | Reach 3,200 Fame | Reroll augments 6 times |
| K/DA | Reach 5,800 Fame | Emote while dashing with Snowball |
| Worlds | Reach 8,800 Fame and wait for patch 26.22 | Deal a total of 15,000 Crit damage to champions in a game |
Frequently asked questions
When does ARAM Mayhem 4.0 release?
Patch 26.21 released internationally on October 21, 2026, and the new augments are in live game data. Regional availability follows local announcements.
Why list 35 new augments rather than 40?
The configuration contains 40 new records. Five are Pentakill-specific or placeholder records, leaving 35 regular new augments.
Can these previews be ranked by win rate?
No. Effect data contains no match win rates, pick rates or game counts. New detail pages mark statistics as unavailable. Rarity groups are not power tiers.
Are names and ability values final?
Names and effects were checked against live 26.21 data on October 22, 2026. Ranges scale with level; ability augments use the ability assigned in-game. Champion stats, damage counters and mission progress are not fixed values.