League of Legends Arena patch 13.15 notes: New stage mechanics added, Heimerdinger, Alistar & more nerfed

Complete guide to League Arena patch 13.15 with strategic insights, champion changes, and practical gameplay tips

Patch 13.15 Arena Overview

The inaugural Arena-specific balance update for League of Legends arrives with patch 13.15, delivering targeted adjustments to reshape the 2v2 combat experience. This comprehensive overhaul addresses champion power disparities while introducing fresh strategic dimensions through new mechanics.

Arena receives its dedicated balancing cycle starting with this update, marking Riot’s commitment to refining the limited-time mode’s competitive integrity. Understanding these changes provides crucial advantages in mastering the evolving meta.

Despite Arena’s casual design philosophy, certain champions dominated through inherent teamfight strengths. Fighters with area control abilities consistently outperformed single-target specialists, creating predictable matchups that reduced strategic diversity.

Crowd control specialists like Alistar and Kennen excelled due to their ability to control the compact battlefield. Wukong’s ultimate proved particularly oppressive in the confined spaces, often deciding rounds single-handedly through perfect area denial.

This balancing pass strategically targets the most dominant performers while elevating underutilized champions through meaningful power adjustments. The changes extend beyond champions to include augment refinements and quality-of-life improvements that enhance the overall player experience.

Arena updates synchronize with Teamfight Tactics and core League patches, with 13.15 scheduled for deployment on August 2, 2023. This coordinated release ensures consistency across Riot’s gaming ecosystem.

This represents the first in a potential series of Arena-specific updates during the mode’s availability. While permanent status remains unconfirmed, strong player engagement could solidify Arena’s position within League’s rotating game mode roster.

New Soul Fighter Mechanics

Strategic variety receives a significant boost through five Soul Fighter cameo champions introducing unique stage mechanics. These additions transform familiar arenas into dynamic battlefields with unpredictable interactions that demand adaptive playstyles.

Each cameo champion brings distinctive arena effects that can dramatically shift round outcomes. Mastering these interactions separates average players from Arena specialists who leverage environmental advantages.

  • Evelynn: Provides universal camouflage, enabling strategic repositioning and surprise engagements that reward map awareness.
  • Gwen: Occasionally shields the lowest-health combatant with Hallowed Mist, creating clutch survival opportunities during intense exchanges.
  • Jhin: Executes Curtain Call volleys alternating between players, demanding constant movement and positioning adjustments to avoid sniper fire.
  • Shaco: Continuously deploys Jack-in-the-Box traps throughout the arena, adding environmental hazards that punish careless positioning.
  • Viego: Transforms the first eliminated player into Viego temporarily, creating dramatic comeback potential through possession mechanics.
  • Pro Tip: Track which cameo champions appear each round and adjust your positioning strategy accordingly. Against Jhin, maintain diagonal positioning relative to your opponent to minimize simultaneous targeting. Versus Shaco, control central areas where boxes spawn less frequently.

    Common Mistake: Players often ignore cameo effects until they’ve already lost a round. Proactively plan your engages around these mechanics—wait for Gwen’s shield to expire before committing to all-ins, or use Evelynn’s camouflage to set up perfect skillshot angles.

    System & Gameplay Changes

    The most impactful system change introduces stacking Grievous Wounds to champions remaining outside the Ring of Fire. This adjustment fundamentally alters survival strategies that previously relied on healing through circle damage.

    Previously, champions with substantial healing capabilities like Mundo or Soraka could effectively ignore ring damage through regeneration. This created stale gameplay where certain compositions could outlast opponents without engaging directly.

    Now, accumulating Grievous Wounds penalizes extended ring stays, forcing proactive engagement. The debuff scales with time spent outside safe zones, making hit-and-run tactics significantly riskier for sustain-focused champions.

    UI enhancements include the new Player Frame Augment Panel, providing clearer visibility of active buffs and augment effects. This quality-of-life improvement helps players track complex ability interactions and make informed decisions during combat.

    Shop reorganization streamlines item purchasing by categorizing items into Starter, Epic, Mythic, and Legendary tiers. This logical progression helps new players understand build paths while allowing veterans to quickly access their preferred items.

    Advanced Strategy: Use the new Grievous Wounds mechanic to your advantage by forcing sustain-heavy opponents into the ring early. Champions with displacement abilities like Blitzcrank or Thresh gain additional value by pulling enemies into fire zones where healing reduction accumulates rapidly.

    Champion Balance Analysis

    While numerous champions received adjustments, Blitzcrank and Bard emerge as standout beneficiaries with transformative buffs that create entirely new playstyle possibilities.

    Blitzcrank’s overhaul represents one of the most dramatic power shifts. Beyond the Quality-of-Life Ability Haste increase on Rocket Grab, his ultimate now boasts a staggering 300% AP ratio on the active component. This transforms the champion from a utility pick into a legitimate burst threat capable of eliminating squishy targets with a single rotation.

    Bard receives equally significant changes through passive adjustments that accelerate his scaling curve. Requiring only two chimes per upgrade tier instead of five dramatically accelerates his power spikes, while the doubled Meep AP ratio (30% to 60%) creates substantial damage potential for ability power builds.

    Rammus enjoys effectively doubled movement speed on Powerball, creating unprecedented engage potential despite potentially remaining outside the meta. This change enables surprising initiation range that can catch opponents off-guard.

    Pet champions face coordinated nerfs, with Annie and Heimerdinger receiving additional adjustments beyond their core game patches. This double-nerf approach ensures their summoned units don’t dominate the Arena environment through sheer statistical advantage.

  • Damage: 5-85 (+80% AD) >>> 15-135 (+100% AD)
  • Revive Health Percentage: 33% >>> 60%
  • Attack speed coefficient: 30% >>> 45%
  • AD ratio: 10% >>> 20%
  • Base HP nerfed by 50%
  • Passive: Traveller’s Call

  • Chimes needed per upgrade tier: 5 >>> 2
  • Meep AP ratio: 30% >>> 60%
  • W: Caretaker’s Shrine

  • Prep time: 10 seconds >>> 8 seconds
  • Max shrines: 3 >>> 33
  • Passive: Mana Barrier

  • Mana:Shield ratio 1:1 >>> 1:2 (essentially means shield’s scaling with mana has doubled)
  • Cooldown: 90 seconds >>> 30 seconds
  • AP scaling: 120% >>> 150%
  • Passive base damage: 50/100/150 (+30/40/50% AP) >>> 60/110/160 (+40/50/60% AP)
  • Active AP Ratio: 100% >>> 300%
  • Package duration: 60 seconds >>> 15 seconds
  • Build Recommendation: For AP Blitzcrank, prioritize Hextech Rocketbelt into Rabadon’s Deathcap to maximize ultimate burst potential. Bard excels with Nashor’s Tooth into Lich Bane, leveraging his enhanced Meep damage for consistent DPS between ability rotations.

    Item & Augment Updates

    Augment balance receives careful attention with targeted adjustments to underperforming and overpowered options. These changes refine the random element that defines Arena’s replayability while maintaining strategic diversity.

    Q: H-28 Evolution Turret

  • Turret HP reduced by 30%
  • E: CH-2 Electron Storm Grenade

    R: Grandmaster at Arms

  • Passive proc base damage: 60-160 >>> 40-120
  • Base CD: 3.5 seconds >>> 2.75 seconds
  • Base damage: 65/95/125/155/185 >>> 100/130/160/190/210
  • Base damage: 50/75/100/125/150 >>> 75/100/125/150/175
  • Base damage: 70/90/110 >>> 100/120/140
  • Stack damage: 35/45/55 >>> 45/55/65
  • AD scaling: 60% bonus AD >>> 80% bonus AD
  • AP scaling: 35% >>> 50%
  • Damage: 20/35/50/65/80 (+40% AD) (+25% AP) >>> 50/65/80/95/110 (+50% AD) (+35% AP)
  • Damage per dagger: 25/37.5/50 (+19% AP) >>> 50/62.5/75 (+22% AP)
  • -50 Ability Haste >>> -100 Ability Haste
  • Base damage: 200/300/400 >>> 50/100/150
  • Active magic damage: 70/95/120/145/170 (+80% AP) >>> 70/90/110/130/150 (+60%)
  • Bonus resistances: 20/40/60 >>> 20/30/40
  • Damage: 40/75/110 (+22.5% AP) >>> 30/55/80 (+18%)
  • W: Steadfast Presence

  • Movement speed: 25-39% >>> 50-78%
  • AP scaling: 100% >>> 125%
  • W: Defensive Ball Curl

  • Armor scaling: (+40/50/60/70/80% total Armor) >>> (+60/70/80/90/100% total Armor)
  • Magic Resistance scaling: (+30/35/40/45/50% total MR) >>> (+40/45/50/55/60% total MR)
  • Taunt duration: 1.2/1.4/1.6/1.8/2 seconds >>> 1.6/1.8/2/2.2/2.4 seconds
  • Attack speed duration: 1.2/1.4/1.6/1.8/2 seconds >>> 1.6/1.8/2/2.2/2.4 seconds
  • AP scaling: 60% >>> 100%
  • Base damage: 20-120 >>> 10-90
  • Max HP damage per second: 4/6/8% >>> 3/4.5/6%
  • W: Eye of Destruction

  • Base slow: 25% >>> 40% (Enhanced slow is unchanged)
  • R: Rite of the Arcane

  • Damage per stack: 20/25/30 >>> 30/35/40
  • Passive: Shepherd of Souls

  • Grave spawn timer: 6 seconds >>> 8 seconds
  • Ghoul HP reduced by 30%
  • E: Hexplosive Minefield

  • AP scaling: 30% >>> 40%
  • Slow: 10/20/30/40/50% >>> 30/40/50/60/70%
  • Shard heal: 20-80 >>> 40-160
  • Shard damage: 30-180 >>> 45-270
  • Ability Power: 70 >>> 80
  • Omnivamp: 15% >>> 20%
  • Movement speed: 10% >>> 15%
  • Passive AP granted: 45-70 >>> 60/90
  • Passive Ability Haste granted: 30 >>> 35
  • Base explosion time: 1 second >>> .75 seconds
  • AoE range beyond dash end: 50 units >>> 100 units
  • Max HP damage: 20-60% >>> 10-20%
  • Base regen: 500% >>> 600%
  • Amped regen: 1000% >>> 1200%
  • Resistances: 45-105 >>> 30-90
  • Augment Strategy: With Ability Haste penalties increased on certain augments, prioritize cooldown reduction items on champions affected by these changes. The buffed AP ratios make magic-focused augments more appealing for ability-reliant champions.

    Bug Fixes & Quality Improvements

    Comprehensive bug fixes address numerous gameplay issues that affected champion performance and user experience. These corrections ensure abilities function as intended and interface elements provide accurate information.

  • Fixed a bug where Trinity Force’s mythic bonus was not giving the correct amount of movement speed under certain conditions.
  • Fixed a bug that was causing the Scoped Weapons Augment to grant the incorrect amount of attack range.
  • Fixed a bug that was causing loading screen tips from TFT to appear in the loading screen.
  • Fixed a bug that was causing the End of Game screen to not display game time and ID.
  • Fixed a bug that caused Champion’s splashes to not appear if they early exited.
  • Fixed a bug that was causing Karma’s Q to stop working when she cast the Die Another Day Augment.
  • Fixed a bug that made players unable to inspect another champion by clicking on them when spectating their combat.
  • Fixed a bug that caused Fiddlesticks’ Scarecrow Effigy to not have an ability icon.
  • Fixed a bug that caused Camille’s Passive to grant a magic shield when attacking an AD champion.
  • Fixed a bug that was causing the Sonic Boom Augments to track damage dealt to target dummies during the planning phase.
  • Fixed a bug that caused the Augment Chauffeur to interfere with aiming controls when the user’s ally would move.
  • Fixed a bug that was causing Mordekaiser’s R to make the screen go completely green if Mordekaiser eliminated the last enemy with it.
  • Fixed a bug that was causing Neeko’s W clone to not move and then teleport when a directional input was made.
  • Fixed a bug that was causing Neeko’s R to show the ability VFX while she was disguised.
  • Fixed a bug that caused Kha’Zix’s R to remain on cooldown if it was used during the previous planning phase.
  • Fixed a bug that was causing attack move to prioritize plants over champions.
  • Fixed a bug where champions could apply on-hit effects to the Health Relic
  • Fixed a bug that was causing the incorrect victory/defeat screen to be shown upon losing/winning a game.
  • Fixed a bug that was causing Gwen’s W to not block damage.
  • Fixed a bug that was causing Earthquake Augment to only explode where Maokai landed after casting his W.
  • Fixed a bug that was causing Gangplank’s R Silver Serpent upgrades to not correctly display the icons.
  • Fixed a bug that allowed Cameo champions to capture Skarner’s crystal spires.
  • Fixed a bug that was causing Wukong’s name to appear as MonkeyKing on the scoreboard. That’s bananas.
  • Quality Impact: These fixes resolve critical issues affecting competitive integrity, particularly the Trinity Force movement speed bug and Scoped Weapons range miscalculation. The corrected augment interactions ensure consistent performance across all champion selections.

    Performance Note: With visual and functional bugs addressed, players can expect smoother gameplay with more reliable ability interactions. This creates a fairer competitive environment where victory depends on skill rather than bug exploitation.

    No reproduction without permission:SeeYouSoon Game Club » League of Legends Arena patch 13.15 notes: New stage mechanics added, Heimerdinger, Alistar & more nerfed Complete guide to League Arena patch 13.15 with strategic insights, champion changes, and practical gameplay tips