League of Legends Patch 25.21 – Detailed Update Notes

EB Thomas•08/10/2025•5 min read

New Skins & Cosmetics

• Prestige Eternal Aspect Zoe
• Beeko
• Mecha Kingdom Skarner

Champions Buffs

Bard

W - Caretaker's Shrine

• Minimum Heal: 25 / 50 / 75 / 100 / 125 (+ 30% AP) ⇒ 25 / 50 / 75 / 100 / 125(+ 40% AP)
• Maximum Heal: 50 / 87.5 / 125 / 162.5 / 200 (+ 60% AP) ⇒ 50 / 87.5 / 125 / 162.5 / 200(+ 70% AP)
• Movement Speed: 20 / 22.5 / 25 / 27.5 / 30 (+ 5% per 100 AP) ⇒ 20 / 22.5 / 25 / 27.5 / 30(+ 6% per 100 AP)

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Ezreal

Base Stats

• Attack Damage Growth: 2.75 ⇒ 3.25

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Kalista

Base Stats

• Attack Damage Growth: 4.25 ⇒ 4.75

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Yone

Base Stats

• Attack Damage: 60 ⇒ 62

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Yunara

W - Arc of Judgment

• Initial Damage: 5 / 30 / 55 / 80 / 105 (+ 85% Total AD) ⇒ 55 / 95 / 135 / 175 / 215 (+ 85% Bonus AD)
• Damage per second: 5 / 20 / 35 / 50 / 65 (+ 40% Total AD) ⇒ 33 / 57 / 81 / 105 / 129 (+ 51% Bonus AD)

W - Arc of Ruin (Transcendent State)

• Damage: 50 / 200 / 350 (+ 175% Total AD) ⇒ 175 / 350 / 525 (+ 150% Bonus AD)

E - Kanmei's Steps

• Movement Speed: 30 / 35 / 40 / 45 / 50% decaying over 1.5 seconds ⇒ 30 / 35 / 40 / 45 / 50% decaying after 1.5 seconds
• Movement Speed toward Enemies: 45 / 52.5 / 60 / 67.5 / 75% decaying over 1.5 seconds ⇒ 45 / 52.5 / 60 / 67.5 / 75% decaying after 1.5 seconds
• Cooldown: 7.5 ⇒ 9
• Step Right: Fixed a bug where Yunara could retain the enhanced movement speed without facing any enemy champions

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Champions Nerfs

Diana

Passive - Moonsilver Blade

• Monster Damage: 300% ⇒ 280%

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Kog'Maw

Q - Caustic Spittle

• Passive Attack Speed: 10 / 15 / 20 /25 / 30% ⇒ 5 / 10 / 15 / 20 / 25%

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Morgana

Base Stats

• Armor Growth: 5 ⇒ 4.2

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Qiyana

Base Stats

• Health Growth: 124 ⇒ 121

Q - Elemental Wrath / Edge of Ixtal

• Damage: 70 / 100 / 130 / 160 / 190 (+ 90% Bonus AD) ⇒ 70 / 100 / 130 / 160 / 190 (+ 85% Bonus AD)

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Quinn

Q - Blinding Assault

• Damage: 65 / 100 / 135 / 170 / 205 (+ 80 / 90 / 100 / 110 / 120% Bonus AD) ⇒ 65 / 100 / 135 / 170 / 205 (+ 80 / 85 / 90 / 95 / 100% Bonus AD)

R - Skystrike

• Damage: 70% Total AD ⇒ 60 / 90 / 120(+ 35% Bonus AD)

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Champions Adjustments

Dr. Mundo

Base Stats

• Armor Growth: 3.7 ⇒ 4.5

E - Blunt Force Trauma

• Minimum Active Damage: 5 / 15 / 25 / 35 / 45 (+ 7% Bonus HP) ⇒ 5 / 15 / 25 / 35 / 45 (+ 5% Bonus HP)

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Graves

Base Stats

• Magic Resistance: 32 ⇒ 30
• Magic Resistance Growth: 2.05 ⇒ 1.3

E - Quickdraw

• Now grants 50% of armor as bonus Magic Resistance.
• Magic Resistance per stack: 2 / 3.5 / 5 / 6.5 / 8
• Max Magic Resistance: 16 / 28 / 40 / 52 / 64

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Gwen
Base Stats

• Health: 600 ⇒ 625
• Health Growth: 100 ⇒ 125
• Attack Speed Growth: 2.5% ⇒ 2.25%

Passive - A Thounsand Cuts

• AP Ratio: 0.55% per 100 AP ⇒ 0.6% per 100 AP

Q - Snip Snip!

• Small Snip Damage: 10 / 15 / 20 / 25 / 30 (+2% AP) ⇒ 10 / 15 / 20 / 25 / 30 (+5% AP)

W - Hallowed Mist

• Armor and Magic Resistance: 22 (+ 7% AP) ⇒ 22 / 24 / 26 / 28 / 30 (+7% AP)
• Cooldown: 24 / 22.5 / 21 / 19.5 / 18 ⇒ 22 / 21 / 20 / 19 / 18

E - Skip 'n Slash

• Damage: 8 / 11 / 14 / 17 / 20 (+ 25% AP) ⇒ 15 (+ 20% AP)
• Cooldown: 12 / 11 / 10 / 9 / 8 ⇒ 13 / 12.5 / 12 / 11.5 / 11
• Cooldown Refund: 50% ⇒ 25 / 35 / 45 / 55 / 65%

R - Needlework

• Damage: 30 / 60 / 90 (+ 8% AP) ⇒ 35 / 65 / 95 (+ 10% AP)
• Slow: 30 / 45 / 60% ⇒ 40 / 50 / 60%

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Items

Cataclyst of Aeons

• Health: 350 ⇒ 300

Doran's Blade

• 3% Lifesteal removed.
• newHeal for 2.5% of damage dealt (reduced to 33% of this value for area of effect spells and pet spells)

Doran's Ring

• Mana Regeneration: 1.25 per second ⇒ 1 per second, increased to 2 per second for 5 seconds after damaging an enemy champion
• Health Regeneration: 0.55 per second ⇒ 45% of mana regenerated value

Doran's Shield

• Max Healing after taking damage: 45 (melee) / 30 (ranged) ⇒ 40 (melee) / 30 (ranged)

Runes

Second Wind

• Healing after taking damage: 3 + 4% of missing health ⇒ 4% of missing health