Patch 25.21 Changes Revealed for League of Legends

Key Takeaways

Three ADCs buffed: Ezreal, Kalista, and Yone gain AD growth to improve mid-to-late-game scaling and win rates.
Gwen near-fully reverted: She returns to her Patch 25.05 state, with two deliberate holdovers — slightly lower armor growth and weaker jungle modifiers.
Bard opens AP build paths: W heal and movement-speed AP ratios rise; Shurelya's Battlesong is the primary beneficiary item named by Riot.
Sustain nerfed across the board: Doran's Shield, the Second Wind rune, and Catalyst of Aeons all lose healing or durability in this patch.
Doran's Blade swaps lifesteal for omnivamp: The new 2.5% omnivamp mechanic ties healing to total damage output rather than basic attacks only.
Diana and Kog'Maw lose jungle efficiency: Targeted nerfs slow their clear speed and reduce early-game dominance.
Top-lane dynamics shift: Range champions benefit indirectly as melee sustain options are trimmed across Doran's Shield, Second Wind, and tank stats.

Read on for the full breakdown of every change in Patch 25.21 and why each adjustment matters for your next ranked game.

Patch 25.21 Overview

Patch 25.21 targets ADC underperformers and pulls back on champions that dominated recent jungle and top-lane metas. Alongside the champion changes, coordinated nerfs to Doran's items and the Second Wind rune reshape early-game lane dynamics for every role. Here is a breakdown of what changed and why it matters for your ranked games.

Champion Buffs and Nerfs

ADC buffs:
- Ezreal: AD Growth rises from 2.75 to 3.25, improving late-game scaling and bringing his stats closer to other scaling marksmen.
- Kalista: AD Growth increases from 4.25 to 4.75, expected to lift her win rate in longer games where her stacking mechanic pays off.
- Yone: Base Attack Damage moves from 60 to 62.
Bard: W (Caretaker's Shrine) minimum heal AP ratio rises from 30% to 40%, maximum heal from 60% to 70%, and movement speed per 100 AP increases from 5% to 6%. Riot's designer note identifies Shurelya's Battlesong as the primary AP item opened up by these changes, giving Bard players a stronger second-purchase option. Players looking to convert the buff window into LP before the next patch cycle can lock in ranked wins with the buffed ADCs while the picks are still undervalued.
Champion nerfs:
- Diana: Passive Monster Damage reduced from 300% to 280%, targeting her jungle dominance.
- Kog'Maw: Q Passive Attack Speed reduced from 10/15/20/25/30% to 5/10/15/20/25%.
- Morgana: Armor Growth reduced from 5 to 4.2.
- Qiyana: Health Growth drops from 124 to 121; Q Bonus AD ratio reduced from 90% to 85%.
- Quinn: Q Bonus AD ratio reduced per rank; R damage formula overhauled from a flat 70% Total AD to a per-rank scaling formula.
Balance changes:
- Dr. Mundo: Armor Growth buffed from 3.7 to 4.5; E (Blunt Force Trauma) Minimum Active Damage bonus HP ratio reduced from 7% to 5% Bonus HP.
- Graves: Base Magic Resistance drops from 32 to 30, but E now grants 50% of armor as bonus MR with additional MR per stack (2/3.5/5/6.5/8, capped per rank).
- Gwen: Receives a near-full reversion to her Patch 25.05 state, with two deliberate holdovers: slightly lower armor growth and weaker jungle modifiers. Stats and per-rank ability values across Q, W, E, and R are all updated in the patch notes.

With those champion updates covered, the patch also brings significant changes to Doran's items, Catalyst, and a key rune that affect multiple roles across the board.

Item and Rune Adjustments

Doran's Blade: Lifesteal removed; replaced with 2.5% omnivamp (33% effectiveness on AoE and pet spells). Healing is now tied to total damage output rather than basic attacks alone.
Doran's Ring: Base mana regen drops from 1.25/sec to 1/sec, but rises to 2/sec for 5 seconds after dealing champion damage — rewarding aggressive lane presence over passive play.
Doran's Shield: Maximum healing after taking damage reduced from 45 (melee) to 40 (melee); ranged remains at 30.
Catalyst of Aeons: Health reduced from 350 to 300, trimming early-game durability for AP mids and tank builds.

Rune change — Second Wind (Resolve path): The flat +3 healing is removed; the rune now provides only 4% missing health healing after taking damage. Champions built around the old sustain-in-lane setup need a refreshed itemisation plan. Review your build path with a LoL coach — a one-session VOD review covers the new optimal buy order far faster than ten ranked games of trial and error.

Key Changes at a Glance

Item / Rune	Change	Impact
Doran's Blade	Lifesteal → 2.5% omnivamp	Healing tied to all damage, not basic attacks only
Doran's Ring	Base regen down; 2/sec burst after champion damage	Aggressive lane play rewarded; passive trading punished
Doran's Shield	Melee max heal 45 → 40	Early-game melee sustain trimmed
Second Wind (rune)	Flat +3 heal removed; % healing only	Early trades less forgiving; lane pressure matters more
Catalyst of Aeons	Health 350 → 300	AP and tank builds lose early durability

These coordinated cuts push early-game combat toward decisive action — staying healthy now requires winning trades, not sitting in passive regen range.

Strategic Takeaways for Patch 25.21

Three angles stand out for climbing effectively in this patch window:

Ride the ADC window: Ezreal, Kalista, and Yone all scale better than before. In solo queue, buffed ADC scaling translates directly into side-lane pressure and late-game teamfight carry potential. Act before the meta adapts around the newly buffed picks.
Rethink sustain-in-lane setups: Doran's Shield and Second Wind both lost healing in the same patch. Melee tops and tanks that relied on passive regen-trading need to adjust trade timing and buy order to stay even in lane.
Leverage Gwen's return: Players who were comfortable on her Patch 25.05 kit have an immediate advantage. Her jungle levers remain weaker than before, so her best path is split-push and skirmish, not early-game-dominant jungling.

Below are the most common questions players have about Patch 25.21.

Frequently Asked Questions

What are the biggest changes in League of Legends Patch 25.21?

The headline changes are ADC buffs to Ezreal, Kalista, and Yone; a near-full reversion of Gwen to her Patch 25.05 state; and coordinated sustain nerfs across Doran's Blade, Doran's Shield, the Second Wind rune, and Catalyst of Aeons.

Is Gwen's Patch 25.21 change a full revert?

Not quite. Riot reverts most of her stats and ability values to Patch 25.05 but keeps two deliberate differences: slightly lower armor growth and weaker jungle modifiers compared to the original 25.05 version.

What item does Bard's W buff benefit most in Patch 25.21?

Riot's designer note specifically calls out Shurelya's Battlesong. The increased heal AP ratios and movement-speed scaling make it a stronger second purchase on AP Bard builds.

Why was Doran's Blade lifesteal removed?

Lifesteal on Doran's Blade rewarded basic-attack-heavy champions disproportionately. The replacement — 2.5% omnivamp at 33% effectiveness on AoE and pet spells — ties healing to total damage output, creating a more even playing field across different ADC archetypes.

How does the Second Wind rune change affect top lane?

Second Wind now provides only 4% missing health healing after taking damage, removing the flat +3 healing component. This reduces passive sustain in melee vs. melee matchups and in range vs. melee lanes, making early trades more punishing for champions who relied on regen to survive poke.

Which champions are nerfed hardest in Patch 25.21?

Diana and Kog'Maw lose the most jungle efficiency. Morgana and Qiyana both lose scaling stats. Quinn sees reductions to her Q bonus AD ratio and a full overhaul of her R damage formula.

Does the Catalyst of Aeons health nerf matter?

The 350 to 300 health reduction is modest but meaningful in the early mid-game window when Catalyst is typically completed first. AP mids and tank builds that relied on Catalyst for early durability will feel the difference in extended skirmishes before their full build comes online.