LoL 12.15 Patch Notes REVEALED

The latest League of Legends patch 12.15 is nearly here. There have been various leaks of information about the new patch but now they're confirmed and finalized.

Riot Games have always been great at keeping their games in check. Having regular updates happens across all titles to make sure players are happy. This latest patch is focused on energy-based champions. However, it also includes tweaks for other champs too.

With that, let's take a look at the full official patch notes for League of Legends patch 12.15.

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LoL 12.15 Patch Notes

lol key highlights 12.15
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W energy restoration and maximum energy bonus increased.

W - Twilight Shroud

Energy Restoration :: 80 >>> 100

Max Energy Increase :: 80 >>> 100


Q true damage conversion decreased.

Q - Snip Snip!

True Damage in Center :: 75% >>> 50% of damage dealt is converted to True Damage


Base attack damage decreased.

Base Stats

Base Attack Damage :: 69 >>> 66


W cooldown decreased early, magic damage increased. R ability power scaling increased.

W - Electrical Surge

Cooldown :: 14/12/10/8/6 >>> 13/11.25/9.5/7.75/6

Magic Damage :: 60/85/110/135/160 >>> 70/95/120/145/170

R - Slicing Maelstrom

Magic Damage Per Bolt :: 40/75/110 (+20% AP) >>> 40/75/110 (+22.5% AP)

Lee Sin

Q, W, and E reactivation energy costs decreased.

Q - Sonic Wave/Resonating Strike

Resonating Strike Energy Cost :: 30 >>> 25

W - Safeguard/Iron Will

Iron Will Energy Cost :: 30 >>> 25

E - Tempest/Cripple

Cripple Energy Cost :: 30 >>> 25


Q mana cost decreased at all ranks. R crowd control duration increased.

Q - Shield of Daybreak

Mana Cost :: 45/50/55/60/65 >>> 35/40/45/50/55

R - Solar Flare

Stun and Slow Duration :: 1.5 >>> 1.75 seconds


Passive damage cap against monsters increased.

Passive - Dream-Laden Bough

Monster Damage Cap :: 40-100 (levels 1-18) >>> 50-150 (levels 1-18)

Master Yi

E cooldown no longer decreases with rank.

E - Wuju Style

Cooldown :: 18/17/16/15/14 >>> 18 seconds at all ranks


Passive bonus attack damage scaling decreased. First Strike bug removed.

Passive - Royal Privilege

Damage :: 15-83 (levels 1-18)<strong>(+45% bonus AD)<strong>(+30%AP) >>> 15-83 (levels 1-18)<strong>(+30% bonus AD)</strong>(+30%AP)


Fixed a bug where Qiyana could apply an extra proc of her passive with First Strike equipped


R cooldown adjusted, base cast range increased, dash range growth increased, minimum and maximum dash speed increased.

R - Soaring Slam

Cooldown :: 110/95/80 >>> 90 at all ranks

Base Cast Range :: 600 >>> 800

Dash Range Growth :: 1.3 >>> 1.5 <em>(note: this is how much the range will scale with movespeed)</em>

Minimum Dash Speed :: 700 >>> 900

Maximum Dash Speed :: 1800 >>> 2000


E passive energy refund increased late.

E - Shadow Dash

Energy Refunded upon dealing damage with Passive or E :: 30/35/40 >>> 30/40/50


Passive bonus movement speed increased, per-target cooldown decreased. R bonus stats increased early.

Passive - Noxious Slipstream

Bonus Movement Speed :: 20% >>> 25%

Per-target Cooldown :: 10 seconds >>> 8 seconds

R - Insanity Potion

Bonus Stats :: 20/60/100 >>> 30/65/100


Attack damage growth decreased. E cooldown increased at all ranks. R cooldown increased at all ranks.

Base Stats

Attack Damage Growth :: 3.3 >>> 3

E - Spell Shield

Cooldown :: 22/20/18/16/14 >>> 24/22.5/21/19.5/18

R - On the Hunt

Cooldown :: 100/85/70 >>> 120/100/80


E cooldown increased at all ranks. R wall duration decreased.

E - Unraveled Earth

Cooldown :: 16/15/14/13/12 seconds >>> 18/17/16/15/14 seconds

R - Weaver’s Wall

Wall Duration :: 5 seconds >>> 4 seconds


Q cooldown decreased at all ranks, magic damage increased at all ranks.

Q - Death Sentence

Cooldown :: 20/18/16/14/12 >>> 19/17/15/13/11

Magic Damage :: 80/120/160/200/240 >>> 100/140/180/220/260


E energy cost decreased.

W - Living Shadow

Shadow Spell Mimic Range: 2000 >>> No Limit

E - Shadow Slash

Energy Cost :: 50 >>> 40


Divine Sunderer

Spellblade Heal :: 65% >>> 55% of premitigation damage (+(4.8% melee/2.4% ranged) of target's maximum health) (+100% base AD)

Mercurial Scimitar

Magic Resistance :: 30 >>> 40

Quicksilver Active Duration :: 1 second >>> 1.5 seconds

Silvermere Dawn

Magic Resistance :: 35 >>> 40

Quicksilver active bonus stats :: 40% Tenacity and 40% slow resist >>> 50% Tenacity and 50% slow resist


First Strike

Bonus True Damage :: 10% >>> 9%

League of Legends Zaun Cup Clash

Team formation for the second weekend of the Zaun Cup Clash starts on August 15, and the tournament days are on August 20 and 21.

Ultimate Spellbook

The Star Guardian event may be ending, but Ultimate Spellbook is sticking around for a little while longer!

Ultimate Spellbook Champion Buffs

Aurelion Sol :: +5% Damage Dealt, +5% Movement Speed

Ultimate Spellbook Champion Nerfs

Xin Zhao :: -5% Damage Dealt, +5% Damage Taken

Ult-ernate Summoner Spell Buffs

Gwen R :: Now has the Adaptive Force/Armor/Magic Resistance Stat Boost

Ult-ernate Summoner Spell Nerfs

Annie R :: 100% AD/AP Ratios >>> 80% AD/AP Ratios

Ult-ernate Summoner Spells updated to match their original functionality:

Annie R

Ashe R

Taliyah R

Ult-ernate Summoner Spells with new Star Guardian-themed particles:

Jhin R

Orianna R (also updated to match her latest VFX update)

Janna R

Miss Fortune R

Soraka R

League of Legends Bugfixes

  • Akali R indicator will now correctly show as on cooldown after R2 cast
  • Kaisa R now correctly functions by applying the Plasma indicator on your own auto attacks, or any of your team's Immobilizing effects. Updated tooltip to match its usage.
  • Urgot R no longer disables spell slots incorrectly when locked by other sources
  • Neeko R no longer turns the owner invisible when dying before the cast finishes
  • Ahri R no longer makes Q or W permanently free to cast
  • Fix Sylas incorrectly getting permanently stuck with Yone or Kha’Zix ultimates after stealing them
  • Annie R no longer immediately triggers Darius’s passive
  • Fix a visual issue when a transformed Kayn uses Morgana
  • Fix Morgana R missing VFX
  • Taliyah R indicator will show as on cooldown after recast or time expiration
  • Taliyah R no longer causes a recast indicator on certain champion spells
  • Fixed missing translations in tooltips for several Ult-ernate Summoner Spells

League of Legends RP Price Increase

As a reminder, starting on August 19 Pacific Time, RP and TFT coin prices will increase in most Riot regions. For more information about the price increase check out Riot's full article here.

League of Legends Competitive System Changes

Having a premade duo is a slight advantage, and while current Apex Tier (Masters, Grandmaster, and Challenger) players aren’t able to duo with anyone, the system only works off current rank. With this change, Riot are tightening up the Apex Tier restriction to apply to MMR as well.

The goal of this is to prevent climbing smurfs from being able to duo queue into Apex Tier. That said, decayed Apex Tier players and the highest skilled Diamond I players may also be impacted by this change.

Up until now, these players could duo and reliably get into Apex Tier games, which isn't fair when the people they're playing against can't duo. If this change works as expected, they'll evaluate shipping it to the rest of the world with plans to re-evaluate before Season Start.

Riot first rolled out this change back in patch 12.10 on the NA and KR servers as a trial and the results have been positive, so we’re rolling it out to the rest of the world. From now on, players with an MMR correlating to Master or above will no longer be able to duo queue in Ranked Solo/Duo, even if their rank is not Master or higher.

Other League of Legends Bugfixes & QoL Changes

  • Fixed a bug where Yuumi would be unable to use swapped summoner spells from Unsealed Spellbook after using Teleport
  • Fixed a bug where Viego would look like a polymorphed champion if he killed and possessed a champion under the effects of Polymorph
  • Fixed a bug where Bel’Veth’s <strong>E - Royal Maelstrom</strong> would not cancel when casting her <strong>R - Endless Banquet<strong> on an out-of-range Void Coral
  • Fixed a bug that caused Nilah’s <strong>Passive - Perfect Synergy<strong> to be audible from the Fog of War
  • Fixed a bug that caused Nilah’s <strong>Passive - Perfect Synergy<strong> to trigger with Ocean Drake’s buff
  • Fixed a bug where Leblanc’s <strong>W - Distortion</strong> was doing slightly less damage at rank 3 than intended
  • Fixed a bug where Evelynn’s stealth would break after a target she killed entered a Zombie Form and then died again (e.g. Sion’s Passive)
  • Fixed a bug where single target range indicators would sometimes follow enemies through the Fog of War
  • Fixed a bug where Rakan would automatically cast his second <strong>E - Battle Dance</strong> to an ally after using Flash
  • Fixed a bug where Yone could activate abilities while in his Spirit Form while locked in the blast cone knockback cc
  • Fixed a bug where Liandry’s Lament’s burn effect was not working correctly
  • Fixed a bug where Blade of the Ruined King was doing less damage if it was purchased after other items
  • Fixed a bug where Swain’s second <strong>E - Nevermove</strong> could pull targets that were in Stasis
  • Fixed a bug where Rift Herald would not charge at towers if it spawned next to them

Upcoming League of Legends Skins & Chromas

The following skins will be released in LoL 12.15:

  • Monster Tamer Lulu
  • Monster Tamer Veigar
  • Zap'Maw

The following chromas will be released in LoL 12.15:

  • Monster Tamer Lulu
  • Monster Tamer Veigar
  • Zap'Maw
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