League of Legends Patch 15.21 – Full Preview

Riot Games has revealed the full preview for Patch 15.21, delivering a balance update focused on frustration-driven tuning. The goal is to stabilize the meta, address player feedback, and refine the feel of several key champions — including Dr. Mundo, Graves, Yunara, Bard, and Qiyana.

⚔️ Champion Buffs

Bard

• W (Caregiver’s Shrine) heal AP ratio: 30–60% → 40–70%
• W move speed AP ratio: 5% → 6%

Ezreal

• Attack Damage growth: 2.75 → 3.25

Kalista

• Attack Damage growth: 4.25 → 4.75

Yone

• Base Attack Damage: 60 → 61

Yunara

• W hit damage: 5–105 (+85% total AD) → 55–215 (+85% bonus AD)
• W DPS: 5–65 (+40% total AD) → 33–129 (+51% bonus AD)
• E movement speed no longer decays
• E and R–E cooldown: 7.5s → 9s
• Bug fix: E now correctly loses enhanced movement speed when turning away from enemies
• R–W damage: 50/200/350 (+175% total AD) → 175/350/525 (+150% bonus AD)

🔻 Champion Nerfs

Diana

• Passive monster damage: 300% → 280%

Kog’Maw

• Q passive attack speed: 10–30% → 5–25%

Morgana

• Armor growth: 5 → 4.2

Qiyana

• Health growth: 124 → 121
• Q damage: 70–190 (+90% bonus AD) → 70–190 (+85% bonus AD)

Quinn

• Q bonus AD ratio: 80–120% → 80–100%
• R damage: 70% total AD → 60/90/120 (+35% bonus AD)

🔄 Champion Adjustments

Dr. Mundo

• Armor growth: 3.7 → 4.5
• E active bonus HP ratio: 7% → 5%

Graves

• Base magic resist: 32–66.85 → 30–52.1
• E active MR per stack: 0 + 50% of armor → 2–8 (max 16–64)

Gwen

• Reverted to 15.05 version (armor growth and passive monster damage remain unchanged)

Skarner

• Full update pushed to Patch 15.22

🧱 System Nerfs

Catalyst of Aeons

• Health: 350 → 300

Second Wind

• Healing after damage: 4% missing health + 3 → 4% missing health

Doran’s Shield

• Max healing: 45 (melee)/ 30 (ranged) → 40 (melee)/ 30 (ranged)

⚙️ System Adjustments

Doran’s Blade

• Life Steal removed
• New passive: Heals for 2.5% of damage dealt (reduced to 33% for AoE or pet damage)

Doran’s Ring

• Mana regen: 1.25/s + 1/s → 2/s for 5s after damaging an enemy champion
• Health regen: 0.55/s → 45% of previous value

🌍 Worlds 2025 & Client Updates

Riot Games is pairing the update with festivities for Worlds 2025, introducing new cosmetics and gameplay improvements:

• New Deceptive Flora skins for Fiddlesticks, Nami, and Lissandra
• Twilight Trials Xin Zhao skin, with proceeds supporting esports
• Doom Bots returns with updated maps
• In-game store now includes team icons and emotes for all Worlds participants

Additional technical upgrades:

• Enhanced broadcast mode with new anonymity levels for streamers
• Anti-ban system preventing accidental bans of allied champions

🏆 Summary

Patch 15.21 emphasizes refinement, bug fixes, and mechanical consistency ahead of the Worlds 2025 championship. With Skarner’s rework coming in Patch 15.22, Riot continues to focus on quality-of-life improvements and steady meta health — ensuring League of Legends remains both competitive and balanced at every skill level.