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League of Legends Patch 13.21 notes: Nexus Blitz returns, K’Sante buffs, Brand jungle & more

Complete guide to League of Legends Patch 13.21 with champion changes, Nexus Blitz return, and strategic insights

  • 8c77a5 Published on 2026-04-02
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Complete guide to League of Legends Patch 13.21 with champion changes, Nexus Blitz return, and strategic insights

Patch Overview and Release Timeline

League of Legends Patch 13.21 represents a crucial stabilization update following the extensive changes introduced in the previous patch. While not as comprehensive as 13.20, this iteration focuses on fine-tuning champion balance and reintroducing popular game modes.

Patch 13.21 delivers targeted adjustments rather than sweeping reforms, with Nexus Blitz making its highly anticipated return alongside champion-specific tuning that addresses emerging meta concerns.

The preceding 13.20 update introduced substantial modifications to runes, starter items, and multiple champions, creating some initial stability issues upon release. These foundational changes established new gameplay dynamics that 13.21 now seeks to refine and balance appropriately.

Riot’s development team has implemented strategic corrections to address overpowered combinations discovered in 13.20 while experimenting with innovative concepts like enhanced jungle clearing capabilities for traditionally lane-focused mages. These experimental changes could significantly reshape champion viability in unexpected ways.

Complete documentation for patch 13.21 follows this overview section:

League of Legends Patch 13.21 is scheduled for deployment on October 25, 2023, following Riot Games’ established update calendar. The rollout begins with Oceanic servers and progressively reaches other regions throughout the day.

Critical timing information for Patch 13.21 across different server regions:

Server maintenance typically requires several hours of downtime, with matchmaking queues disabled approximately three hours before the update process begins. Players should plan accordingly to avoid interrupted gaming sessions.

Champion Balance Changes Analysis

Caitlyn and Jinx, two dominant ADC picks in the current meta, receive calculated nerfs this patch. Jinx’s snowball potential through her infinite attack speed stacking passive sees reduction to prevent excessive late-game dominance, while Caitlyn’s lethal one-shot builds face targeted adjustments to maintain healthy counterplay options.

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K’Sante receives compensatory buffs following his recent comprehensive rework. While his ability kit remains fundamentally unchanged, the interactions between his skills and damage output have been recalibrated. These adjustments aim to restore his competitive viability after the intended power reduction from his rework.

Riot continues experimenting with expanding jungle champion diversity through specific modifications to mage characters. Morgana, Brand, and Zyra receive jungle-oriented changes that could potentially establish them as legitimate jungle picks, with Morgana receiving particular attention to enhance her already existing jungle capabilities.

Seraphine’s power distribution undergoes significant rebalancing to align with her intended support role design. Despite her original conception as a support champion, she has consistently performed more effectively as either an attack damage carry or mid laner. These changes deliberately shift her strength toward her designated support position.

Strategic Implications: These champion adjustments reflect Riot’s ongoing effort to balance champion power across different elos. Jinx’s passive nerf specifically targets her snowball potential in coordinated play, while the mage jungle changes could open new strategic possibilities for team compositions. Players should expect approximately 2-3% win rate shifts for the directly affected champions.

Nexus Blitz Return Details

Nexus Blitz makes its triumphant return to League of Legends after an extended absence. Previously believed permanently retired, this fast-paced game mode rejoins the rotation as part of Riot’s initiative to maintain gameplay variety through rotating mode availability.

Additionally, numerous Nexus Blitz-specific modifications require attention before diving into matches. These tailored adjustments appear following the standard balance changes in the patch notes, with direct navigation available through specific section links.

Nexus Blitz operates at an accelerated pace compared to Summoner’s Rift, necessitating customized balance configurations that ship pre-integrated with the patch. Below you’ll find comprehensive details regarding mode-exclusive adjustments.

All previous Nexus Blitz tuning parameters have been completely reset. Given the substantial time since the mode’s last availability, Riot approaches its reintroduction with entirely fresh balancing perspectives. Assume all baseline values correspond to Summoner’s Rift standards unless specifically noted otherwise.

Jungle Progression Acceleration: The number of camps required to evolve jungle pets has been reduced by fifty percent: 20 becomes 10 for initial evolution, 40 becomes 20 for secondary evolution. However, players no longer receive bonus treats following jungle pet upgrades.

Due to significantly accelerated gold and experience acquisition compared to standard Summoner’s Rift matches, jungle camp health points receive universal increases to maintain appropriate clear timing challenges.

The following competitive events will spawn with neutral alignment or favorable positioning for teams currently at a disadvantage:

  • All variants of Bardle Royale

    • Mode Strategy Tip: The faster jungle progression means junglers can reach their power spikes approximately 3-4 minutes earlier than in Summoner’s Rift. Prioritize early ganks and objective control since the compressed timeline makes early advantages significantly more impactful.

    Complete Patch Notes

    Champion-Specific Adjustments

  • Base damage over time increased: 15 – 55 becomes 45 – 105
  • Damage over time no longer scales with champion level
  • Damage over time ability power ratio decreased: 60% becomes 55%
  • Burst damage increased: 40 – 80 becomes 60 – 100
  • Burst damage no longer scales with level
  • Cooldown reduced: 24 – 18 becomes 20 – 16
  • Attack speed per level: 2.3% becomes 2%

    • Passive: Crimson Curse

  • Healing on kill increased: 100% becomes 125%

    • W: Blood Frenzy/Snack Attack

  • Execute ratio decreased: 4% per 100 bonus AD becomes 3.5% per 100 bonus AD
  • Base health reduced: 590 becomes 570
  • Health growth increased: 102 becomes 105
  • Base armor increased: 22 becomes 27
  • Armor growth reduced: 4.7 becomes 4.2
  • Base attack speed increased: 0.625 becomes 0.681
  • Attack speed growth: 1.36% becomes 2%
  • Monster bonus damage increased: 120% becomes 300%
  • Base damage reduced: 70 – 170 becomes 65 – 165
  • Critical chance ratio increased: 142.1875% becomes 148.75%
  • Base damage reduced: 300 – 750 becomes 300 – 700
  • Bonus AD ratio reduced: 200% becomes 170%
  • Critical strike ratio increased: 3.5% per 10% crit becomes 5% per 10% crit
  • Cooldown increased: 90 – 60 becomes 90 flat

    • E: Blunt Force Trauma

  • Bonus AD reduced: 2-4% max HP becomes 2-3% max HP
  • AD growth increased: 3.2 becomes 3.7
  • Duration increased: 4 becomes 5 seconds

    • Passive: Get Excited!

  • Attack speed now only stacks on champion takedowns (epic monsters and structures still refresh the buff)

    • Passive: Dauntless Instinct

  • True damage conversion during ultimate: 35% becomes 45 – 75%
  • Bonus HP threshold for minimum cast time: 1800 becomes 1200
  • Maximum duration increased: 1 second becomes 1.5 seconds
  • Healing now based on all damage dealt to champions rather than just true and physical damage
  • Q and E attack resets are now instant
  • AP ratio increased: 65% becomes 75%
  • E2 AP ratio increased: 70% becomes 80%
  • Cooldown decreased: 18 becomes 14 seconds
  • Damage increased: 12 – 52 becomes 12 – 56
  • Monster damage modification increased: 165% becomes 170%
  • Base damage reduced: 100 – 200 becomes 80 – 200

    • W: Defensive Ball Curl

  • Base armor reduced: 35 becomes 30
  • Armor ratio reduced: 40 – 80% becomes 35 – 75%
  • Base armor increased: 19 becomes 26
  • Health growth reduced: 104 becomes 90
  • Base mana reduced: 440 becomes 360
  • Mana growth increased: 40 becomes 50
  • Base mana regeneration increased: 8 becomes 11.5
  • Mana regeneration growth decreased: 1 becomes 0.4
  • Attack speed growth increased: 1% becomes 2%
  • Missile speed increased: 1200 becomes 1400
  • Minimum base damage increased: 50 – 115 becomes 55 – 155
  • Minimum AP ratio changed: 45 – 65% AP becomes 50% at all ranks
  • Cooldown reduced: 10 – 5 becomes 9 – 5
  • Cooldown reduced: 28 – 20 becomes 28 – 16
  • Mana cost increased: 50 – 90 becomes 70 – 90
  • Base shield increased: 50 – 130 becomes 50 – 150
  • Base heal reduced: 5 – 7% becomes 3 – 5%
  • Heal no longer scales with 0.4% per 100 AP of target’s missing health
  • Mana cost reduced: 60 – 100 becomes 60 – 80
  • Base damage increased: 60 – 140 becomes 60 – 200

    • Passive: An Acquired Taste

  • Base damage changed: 8 – 60 (based on level) becomes 6 – 48 (based on levels)
  • Bonus health damage scaling: 3% bonus HP becomes 5% bonus HP
  • Cooldown refund increased: 40% at all ranks becomes 40 – 50% at all ranks
  • On-hit base damage increased: 7 -21 becomes 7 – 31
  • Slow increased: 25 – 45% becomes 30 – 50%
  • Base attack speed increased: 0.625 becomes 0.681

    • Passive: Garden of Thorns

  • Plant base damage reduced: 20 – 100 becomes 20 – 88
  • Plant AP ratio: 15% becomes 18%
  • Base damage increased: 60 – 200 becomes 60 – 220
  • AP ratio increased: 60% becomes 65%
  • Base damage reduced: 60 – 240 becomes 60 – 200
  • AP ratio increased: 50% becomes 60%
  • Bonus armor and magic resistance reduced:
    • Melee: 10 – 75 becomes 10 – 60
    • Ranged: 5 – 35 becomes 5 – 30
  • Melee: 10 – 75 becomes 10 – 60
  • Ranged: 5 – 35 becomes 5 – 30
  • Bonus true damage reduced: 8% becomes 7%
  • Melee bonus movement speed decreased: 30-60% becomes 25 – 50%
  • Base damage reduced: 16 becomes 15.5
  • Bonus AD ratio reverted: 0% becomes 10%
  • AP scaling reverted: 10% becomes 12%
  • Heal per attack changed: 70% of damage dealt becomes 13 – 46 (levels 1 to 12), healing cap removed
  • Heal on monster kills: 12% missing health becomes 36-90 (levels 1-10) (+ up to 2.25x based on missing health)
  • Mana on monster kills: 20% missing mana becomes 19-87 (levels 1-18) (+ up to 2.25x based on missing mana)

    • Nexus Blitz Exclusive Changes

  • Number of camps needed to evolve jungle pets has been halved: 20 becomes 10 for first evolution, 40 becomes 20 for second
  • Players no longer get bonus treats after their jungle pet has been upgraded
  • Scuttler Health: 2800-9520 becomes 3400-11560
  • Ancient Krug Health: 1300-3055 becomes 1650-3878
  • Krug Health: 600-1410 becomes 900-2115
  • Mini Krugs Health: 50-118 becomes 80-188
  • Greater Murk Wolf Health: 2000-4700 becomes 2400-5640
  • Murk Wolves Health: 600-1410 becomes 800-1880
  • Sir Gromp Health: 2000-4700 becomes 2400-5640
  • Crimson Raptor Health: 1250-2937 becomes 1600-3760
  • Raptors Health: 500-1175 becomes 700-1645
  • Red Brambleback Health: 4000-10800 becomes 4600-12420
  • Blue Sentinel Health: 3000-8100 becomes 3500-9450
  • Jungle Guardian Health: 3775-5521 becomes 4500-6584
  • Jungle Guardian AD: 40-95 becomes 40-105
  • Rift Herald Health: 7500-15000 becomes 8400-16800
  • Lifeline Active Cooldown: 120 seconds becomes 60 seconds
  • Spectral Cutlass Active Cooldown: 60 seconds becomes 45 seconds
  • Innervating Locket: After using an ability, restore 3.8% of missing health and 3% of missing mana over 3 seconds
  • During events with a ring of fire (Bardle Royale, URF Deathmatch, Prize Fight), killing scoundrels will revive teammates with 30% of their maximum health at the location of their death

    • Passive: Death in Lavender

  • Enemy jungle guardians drop an Enhanced Void Coral

    • Passive: Friend of the Forest

  • Ivern’s passive has been disabled in Nexus Blitz

    • No reproduction without permission：SeeYouSoon Game Club » League of Legends Patch 13.21 notes: Nexus Blitz returns, K’Sante buffs, Brand jungle & more Complete guide to League of Legends Patch 13.21 with champion changes, Nexus Blitz return, and strategic insights

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