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Patch 26.15 - ARAM Mayhem 26.15 - Systemic Champion Modifiers and Augment Tuning

Stay up to date with the latest League of Legends ARAM: Mayhem changes, including champion balance updates, augment modifications, and gameplay adjustments for each patch.

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Patch 26.15 - ARAM Mayhem 26.15 - Systemic Champion Modifiers and Augment Tuning

Released: July 28, 2026
Latest

Highlights

  • Champion damage-dealt modifiers now apply to ability, attack, item, and Augment damage, letting Riot remove many one-off modifiers while balancing each champion's total output more consistently.
  • Most underperforming Augments received stronger combat payoffs, Critical MissileCritical Missile was toned down for crit marksmen, and 21 Mayhem bugs were fixed across Ability Augments, quests, shops, VFX, and offer eligibility.

General Changes

Champion Modifier System

Damage-dealt modifiers now affect every major champion damage source: abilities, basic attacks, items, and Augments. This makes the global modifier a more accurate lever for total champion performance.

Champion Balance Cleanup

Riot removed many healing, shielding, damage-taken, damage-dealt, Ability Haste, and minion-damage exceptions, while retaining smaller targeted adjustments for champions that still need them.

Augment Tuning and Bugfixes

Ten Augments were buffed or gained new interactions, Critical Missile lost damage, and the bugfix pass corrected 21 cases involving Augment triggers, quests, shops, targeting, VFX, and invalid offers.

Augment Changes

Warding Weapon

  • •Resists per stack: 5 / 6.25 / 7.5 / 8.75 / 10 => 7 / 8.25 / 9.5 / 10.75 / 12.

Squishy Slappy GrabSquishy Slappy Grab

  • •Cooldown: 45s => 35s.

Titan's ResolveTitan's Resolve

  • •Adaptive Force: 25 / 31.25 / 37.5 / 43.75 / 50 => 25 / 37.5 / 50 / 62.5 / 75.
  • •Armor and Magic Resistance per 10 stacks: 4 / 5 / 6 / 7 / 8 => 5 / 6.25 / 7.5 / 8.75 / 10.

HellbentHellbent

  • •Cooldown: 120s => 90s.

Earthwake

  • •Base damage: 70 / 105 / 140 / 175 / 210 => 90 / 130 / 170 / 210 / 250.

Endless DecimationEndless Decimation

  • •Missing-health healing: 15% => 18%.

Chain ReactionChain Reaction

  • •Ultimate ability damage is now increased to 250%.

Critical Missile

  • •Damage per missile: 20 / 40 / 60 / 80 / 100 => 15 / 32.5 / 50 / 67.5 / 85.

DropBearDrop Bear

  • •Stun duration: 1.5s => 0.5s.
  • •Tibbers bonus Health: 0 / 1125 / 2250 / 3375 / 4500 => 1000 / 2375 / 3750 / 5125 / 6500.

Pat On The BackPat on the Back

  • •Can now be taken by multiple players on the same team.

Mercy's StrikeMercy's Strike

  • •Its buff is now consumed when attacking turrets.
  • •Turrets take 2.5% maximum Health damage.

Champion Balance Changes

  • Healing90% => 100%
  • Damage Dealt105% => 100%
  • Damage Taken+5% => 0%
  • Healing80% => 100%
  • Damage Modifier95% => 100%
  • Damage Taken-5% => 0%
  • Shielding90% => 100%
  • Damage Taken-5% => 0%
  • Damage Dealt105% => 100%
  • Damage Taken+10% => +5%
  • Damage Dealt110% => 105%
  • Damage Dealt to Minions60% => 100%
  • Damage Taken-5% => 0%
  • Damage Taken+10% => 0%
  • Damage Dealt110% => 100%
  • Damage Dealt88% => 90%
  • Damage Dealt105% => 100%
  • Damage Dealt to Minions60% => 100%
  • Damage Taken-5% => 0%
  • Damage Taken-2% => 0%
  • Damage Taken-10% => 0%
  • Damage Taken-5% => 0%
  • Damage Dealt115% => 110%
  • Damage Dealt105% => 100%
  • Damage Taken+5% => 0%
  • Damage Dealt97% => 100%
  • Damage Taken-8% => 0%
  • Ability Haste-10 => 0
  • Healing105% => 100%
  • Ability Haste-10 => 0
  • Damage Dealt to Minions60% => 100%
  • Damage Taken-5% => 0%
  • Damage Dealt95% => 100%
  • Damage Dealt105% => 100%
  • Damage Taken+5% => 0%
  • Damage Dealt87% => 90%
  • Damage Dealt to Minions60% => 100%

Bug Fixes

About ARAM: Mayhem Patch Notes

These patch notes summarize ARAM: Mayhem-related changes. We extract and highlight updates including champion adjustments, augments changes, and gameplay tweaks.

Each patch can shift the meta. Check the latest tier list and builds to stay ahead on the Howling Abyss.

Source: Official League of Legends Patch Notes from leagueoflegends.com