League of Legends patch 12.5b notes: Master Yi buffs, Zeri & Jinx nerfs

Comprehensive guide to League of Legends patch 12.5b: AD carry meta shakeup, champion adjustments, and strategic implications

Patch Overview and Meta Implications

League of Legends patch 12.5b has arrived with transformative changes targeting the stagnant AD carry position that has dominated Season 12. This emergency update represents Riot’s proactive approach to meta management between major patch cycles.

The developers have deployed this b-patch specifically to address the overwhelming dominance of three primary ADC picks that have constrained strategic diversity. While Master Yi receives compensatory adjustments, the overwhelming focus remains on rebalancing the bot lane ecosystem.

Originally planned as an extended patch cycle, League patch 12.5 required immediate intervention to prevent meta stagnation. The developers identified concerning trends in champion select patterns that threatened to reduce gameplay variety.

Nine champions and one crucial support item face modifications in this comprehensive balance update. The bot lane receives particular attention with seven marksmen undergoing significant changes, while Locket of the Iron Solari sees nerfs to reduce its overwhelming presence in support builds.

This analysis provides strategic insights into how these changes will impact your gameplay, including optimal champion selections and adaptation strategies for the evolving meta.

The ADC meta throughout Season 12’s initial phase has demonstrated concerning lack of diversity, particularly following Zeri’s introduction. Three dominant picks have consistently occupied the top tier: Aphelios, Jinx, and the recently released Spark of Zaun champion.

  • Strategic Insight: Mastering multiple AD carry champions becomes crucial as the meta shifts away from triple-dominance toward broader viability
  • Bot Lane Champion Adjustments

    Interestingly, the three dominant AD carries facing nerfs in patch 12.5b collectively represent approximately 40% of all bot lane selections. Zeri has undergone multiple adjustments recently, while Jinx has maintained her top-tier status without significant changes until now.

    These nerfs are strategically complemented by substantial buffs to underutilized marksmen including Ashe, Draven, Lucian, and Varus. This dual approach should dramatically reshape bot lane dynamics and champion selection patterns.

    Jinx Adjustments: The Loose Cannon receives targeted nerfs to her rocket launcher form. Fishbones now consumes 20 mana at all ranks instead of scaling from 16-20, significantly impacting her early game wave clear and poke potential. Additionally, the range on her rockets is reduced at earlier levels, forcing players to be more strategic about positioning during laning phase.

    Zeri Modifications: The Spark of Zaun sees base attack damage reduced from 58 to 53, while receiving compensation through health growth increases. Her armor progression is also adjusted downward, making her more vulnerable to physical damage threats. Most significantly, her charged right-click damage based on enemy maximum health is substantially reduced, affecting her tank-busting capabilities.

    Buffed Champions Strategy: Ashe receives cooldown reductions on her Enchanted Crystal Arrow, making her engage potential more frequent. Draven gains additional attack damage, strengthening his snowball potential. Lucian sees reverted nerfs to his ultimate cooldown and base damage on his E ability. Varus receives significant ultimate damage increases at higher ranks, enhancing his teamfight presence.

  • Pro Tip: With Jinx’s mana costs increased, consider adjusting rune setups to include Presence of Mind or Manaflow Band to maintain lane presence
  • Common Mistake: Avoid first-picking nerfed champions until you’ve adapted to their new power curves and limitations
  • Master Yi Compensation Buffs

    Master Yi’s previous adjustments in patch 12.5 unexpectedly strengthened the Wuju Bladesman rather than curtailing his dominance. The changes to Alpha Strike initially propelled him higher in jungle tier lists despite intended nerf direction.

    Subsequent hotfix nerfs proved excessively impactful according to Riot’s internal metrics, prompting these compensatory buffs in the March 9 update. The developers aim to restore balance without returning him to previous overpowered states.

    The current adjustments partially revert previous nerfs to Wuju Style’s true damage values while reducing the cooldown of Highlander at early ranks. These changes should improve his early game clearing speed and skirmishing potential without making him overwhelming in late-game scenarios.

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  • Jungle Insight: Master Yi’s early game ganking potential improves with ultimate cooldown reduction – coordinate with laners for level 6 timing attacks
  • Item Balance Changes

    Locket of the Iron Solari receives targeted nerfs to reduce its overwhelming presence in support and jungle builds. The Consecrate aura now provides only 3 bonus armor and magic resist instead of 5, diminishing its teamwide defensive value.

    Additionally, the Devotion active shield amount is reduced across all levels, providing 200-365 protection based on target level instead of 230-385. This change particularly impacts early game survivability during skirmishes and objective contests.

    These adjustments aim to open up build diversity among tank supports and junglers who have heavily favored Locket due to its exceptional teamfight utility and stat efficiency.

  • Build Adaptation: Consider Shurelya’s Battlesong or Evenshroud as alternatives for engage supports following Locket nerfs
  • Strategic Shift: Teams relying on Locket comps should adjust engage timing to account for reduced protective capabilities
  • Complete Patch Notes

    League of Legends patch 12.5b became available on March 9. Below are the comprehensive patch notes detailing all champion and item modifications.

    Ashe

  • Mana: 70 at all ranks ⇒ 75/70/65/60/55
  • R: Enchanted Crystal Arrow

  • Cooldown: 100/80/60 seconds ⇒ 80/70/60 seconds
  • Draven

  • Attack Damage: 60 ⇒ 62
  • Jinx

  • Fishbones Mana: 16/17/18/19/20 ⇒ 20 at all ranks
  • Fishbones Range: 100/125/150/175/200 ⇒ 80/110/140/170/200
  • Attack Damage growth: 2.3 (101.1 at level 18) ⇒ 2.9 (111.3 at level 18)
  • Aphelios

    Passive: Lightslinger

  • Vigilance bonus magic damage on-hit: 14 (+10% AD) ⇒ 14 (+20% AD)
  • Lucian

  • True damage: 30/37/44/51/58 (+30% bonus AD) ⇒ 30/38/46/54/62 (+30% bonus AD) (base damage reverted only)
  • Cooldown: 100/90/80 seconds ⇒ 85 seconds at all ranks (reverted)
  • Ryze

    Passive: Arcane Mastery

  • Maximum mana increase: 5% per 100 AP ⇒ 10% per 100 AP
  • Damage: 75/100/125/150/175 (+40% AP) (+3% bonus mana) ⇒ 70/90/110/130/150 (+45% AP) (+3% bonus mana)
  • Passive bonus magic damage on-hit: 7/9/11/13/15 (+30% AP) ⇒ 7/10.5/14/17.5/21 (+30% AP)
  • Varus

    R: Chain of Corruption

  • Base magic damage: 150/200/250 ⇒ 150/250/350
  • Zeri

  • Attack Damage: 58 ⇒ 53
  • Health growth: 85 (1945 at level 18) ⇒ 90 (2030 at level 18)
  • Armor: 23 (+3.5 per level), 82.5 at level 18 ⇒ 22 (+3 per level), 73 at level 18
  • Charged magic damage ratio based on target’s max health: 3-15% (levels 1-18) ⇒ 1-10% (+0.5% levels 1-7, +1% levels 8-13)
  • Total physical damage: 9/13/17/21/25 (+110% AD) ⇒ 10/15/20/25/30 (+ 110% AD)
  • Cooldown: 23/22/21/20/19 seconds ⇒ 23 seconds at all ranks
  • Pierce damage: 80/85/90/95/100% ⇒ 60/70/80/90/100%
  • Stack per champion hit by initial Lightning Crash: 3 ⇒ 4
  • Bonus move speed per stack: 2% ⇒ 1.5%
  • Locket of the Iron Solari

  • Consecrate bonus armor and magic resist: 5 ⇒ 3
  • Devotion shield amount: 230-385 (target’s levels 1-18) ⇒ 200-365 (target’s levels 1-18)
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