Patch 9.12 Notes

Posted on at 11:06 AM by Aznbeat

Patch 9.12 is on the way and the official patch notes have been posted!
Continue reading for more information!
Check out the Patch 9.12 notes (be sure to check regional editions for slight variations!):
Hello, welcome to Patch 9.12! I'm particularly excited about this patch because my friend will finally stop going on and on about the reworked Mordekaiser. Oh, have you not heard? Mordekaiser is back, baby. 

In this patch we also have Ryze's sixth (or is it seventh?) "rework," more follow-up to everyone's favorite overpowered cat, and overall nerfs to Sylas. We're also making use of the Balance Framework we published and referencing it in our explanations for some champion changes, so make sure to check that out if you haven't! (Link to it in its respective section below). 

Finally, we have another round of ARAM balance changes for the Howling Abyss enthusiasts as well as some beautiful VFX updates to Lulu, Amumu, Tryndamere, and Ziggs.

Read on for the full deets!
 Hanna “shio shoujo” Woo Paul "Aether" Perscheid

Patch Highlights

Dark Cosmic Jhin, Dark Star Shaco, and Dark Star Karma will be available on June 13, 2019.

Balance Framework

Last week, we introduced the Champion Balance Framework, a source for all players to hold the “balance” team accountable for how we approach buffing/nerfing champions on a patch-to-patch basis. Moving forward, we'll be referencing principles, thresholds, and specific audiences from the post when explaining the changes in the Patch Notes. For more details and information, you can find the full Champion Balance Framework post here.



The Iron Revenant
The unstoppable juggernaut is back from the afterworld and ready to conquer the land of the living in patch 9.12!
High-res versions of Mordekaiser's updated splash arts are available on League Displays!


Q spell ranks decreased, shield removed, damage bonus now dependent on R. W now slows; Spell Flux bonus converts slow to root.
When Ryze is played optimally, he covers his weaknesses incredibly well. At the same time, he benefits highly from a coordinated team. Pro play relishes champions with these characteristics, which is why he's been such a strong pick in the space. We're chipping away at these strengths to quell his presence there, but at the same time, helping out those who are looking to pick him up and aren't as precise in their combos.

With the removal of his shield, he'll have fewer means of survivability against bad match-ups, and by changing his CC to a slow, his gank targets should have better chances of escaping a 2v1 (especially a Flash > Rune Prison combo). As part of the general adjustments we're making to make him more welcoming to less experienced players, we're also opening up the bouncing game a bit more by making Spell Flux always bounce off its primary target, and placing some scaling into a passive on Realm Warp. Then there’s a bunch of tuning to account for those changes. It’s not what we would typically call a rework, but since it’s Ryze, we’ll count it. Looking forward to v7 (v8?)!

Base Stats

MANA400  300

Q - Overload

DAMAGE60/85/110/135/160/185  80/105/130/155/180
REMOVEDSHIELDNo longer grants a shield after consuming 2 Runes
UPDATEDSPELL DAMAGE BONUS40/50/60/70/80% (based on Spell Flux's rank)  10/40/70/100% (based on Realm Warp's rank)
BONUS MOVEMENT SPEED25/28/31/34/37/40%  20/25/30/35/40%

W - Rune Prison

RATIO1% bonus mana  4% bonus mana
COST50/60/70/80/90 mana  40/55/70/85/100 mana
BASE CROWD CONTROLRooted for 0.75 seconds  Slowed by 35% for 1.5 seconds
SPELL FLUX BONUSIncreased root duration  Converts Slow to Root

E - Spell Flux

DAMAGE70/90/110/130/150  60/80/100/120/140
COST60/70/80/90/100 mana  40/55/70/85/100 mana
NEWBOUNCE HOUSENow always bounces off the primary target
REMOVEDPING PONG PAINBounces no longer damage enemies
REMOVEDFLUX BOMBNo longer spreads Flux to nearby enemies on unit kill

R - Realm Warp

NEWWARP DAMAGEOverload damage bonus against targets with Flux increased to 40/70/100%
NEWCLOSE ENOUGHImmediately casts at max range when attempting to cast beyond that
MAXIMUM CAST RANGE1750/3000  3000
COOLDOWN180 seconds  210/180/150 seconds


Passive now stores up to 2 charges; base damage increased; AoE damage less effective against minions. Q detonation damage and AoE range decreased on minions. W heal increased. E shield adjusted and cooldown increased later.
Sylas continues to be a high-tier competitive champion despite struggling in the hands of most players. We're taking some swings at aspects of his kit that are more powerful in pro, such as the on-demand nature of his shield and his AoE wave clear.

Passive - Petricite Burst

NEWCHARGESNow stores up to 2 charges which will be consumed on subsequent basic attacks
BASE DAMAGE5-47.5 (levels 1-18)  9-60 (levels 1-18)
NEWMINIONS ARE FRIENDSDeals 70% less damage to minions

Q - Chain Lash

DETONATION DAMAGE45/70/95/120/145 (+0.60 ability power) 40/60/80/100/120 (+0.40 ability power)
DETONATION AOE200 range on minions  180 range on minions

W - Kingslayer

HEAL60/80/100/120/140 (+0.4 ability power)  70/90/110/130/150 (+0.50 ability power)

E - Abscond/Abduct

REMOVEDABSCOND SHIELDNo longer shields himself for 2 seconds on first cast
COOLDOWN18/16/14/12/10 seconds  18/17/16/15/14 seconds
NEWABDUCT SHIELDGrants a 80/115/150/185/220 (+1.0 ability power) shield on enemy champion or monster hit for 2 seconds


Base health increased. Passive mana refund decreased early; shield decreased. W shared adaptive force adjusted; dash now interruptible by all CC.
Good Yuumis are very frustrating to play against and have virtually no windows of vulnerability—and more players are starting to get good at Yuumi. With this in mind, we're pulling some of the mid-patch buffs we gave her at release and nerfing her defenses to open up some weaknesses. Also, bugfixes and usability improvements!

Base Stats

HEALTH432.36  480

Passive - Bop N' Block

MANA REFUND40-160 (level 1-18)  30-160 (level 1-18)
SHIELD80-360 (+0.40 ability power)  80-300 (+0.30 ability power)

Q - Prowling Projectile

BUGFIXFixed a bug where the missile would not spawn towards the cursor as intended

W - You and Me!

KILL THE CATEnemies now gain an assist on Yuumi when damaging the ally Yuumi is attached to
UPDATEDSHARED ADAPTIVE FORCE5/9/13/17/21% of her attached ally's adaptive force  5/7/9/11/13 flat adaptive force (+4/7/10/13/16% of her attached ally's adaptive force)
AND I OOPYuumi's dash can be interrupted by knock-ups and knockbacks Yuumi's dash can be interrupted by any immobilizing CC
BUGFIXFixed a bug where Yuumi would detach unintentionally when trying to attach to another champion outside of her range

Quality of Life Changes

SPECTATOR MODERange rings for Yuumi's Q, W, and R no longer show on Spectator Mode
SNEAKY SNEAKSYuumi now gains the same stealth screen overlay and fade on her model when attached to a champion in stealth
SADAKO'S JEWELRYThe ally that Yuumi's attached to now has a ring around them that only Yuumi can see

Simple Champion Changes


Passive cooldown now scales based on level. R healing bonus now only applies to self-healing.
We're following-up with the changes we made to Aatrox in 9.9 since right now he heals way too often in lane (via his passive) and heals way too much late-game (from book cats and star goats).

Passive - Deathbringer Stance

COOLDOWN15 seconds  24-12 (level 1-18) seconds

R - World Ender

HEALING BONUSAll incoming healing  Self-healing only


W cooldown decreased.
Ashe could use more power, so we're specifically buffing the ability that she uses most to keep enemies at bay.

W - Volley

COOLDOWN15/12.5/10/7.5/5 seconds  14/11.5/9/6.5/4 seconds


Base attack damage increased.
This is definitely a small buff, but we're being extra cautious with her since she has a tendency to take over metas.

Base Stats



E cooldown increased; range decreased
Due to her dominance in pro play, we're making Irelia pay a higher cost when she fails to stun her enemies with Flawless Duet. The decreased range should also make it riskier for her to go all-in.

E - Flawless Duet

COOLDOWN14/13/12/11/10 seconds  18/16.5/15/13.5/12 seconds
RANGE850  775


Q slow increased. E cost decreased; movement speed duration increased to match shield duration.
We're giving Karma more tools to help her survive, especially when she's caught out by herself.

Q - Inner Flame

SLOW25%  35%

E - Inspire

COST60/65/70/75/80 mana  50/55/60/65/70 mana
MOVEMENT SPEED DURATION1.5 seconds  2.5 seconds (now matches shield duration)


VFX on all abilities updated. E shield increased; cost decreased later.
Buffs to help out support Lulu and bring her back into consideration. We've also updated her VFX to make her magic feel more unique and improve her gameplay clarity.

VFX Updates

BASIC ATTACKNew purple-ier missiles and hit effects
ALL SKINSCleaned up to match the new effects on the base skin
DRAGON TRAINER LULUPix now shoots out small pink fireballs

E - Help, Pix!

SHIELD70/105/140/175/210  80/115/150/185/220
COST60/70/80/90/100 mana  60/65/70/75/80 mana
VFXCleaned up shield (on allies) and improved Pix's teleport and hit effects (on enemies)

Passive - Pix, Faerie Companion

VFXCleaned up Pix's bolts

Q - Glitterlance

VFXNew purple-ier missiles and hit effects

W - Whimsy

VFXCleaned up buff effect (for allies) and missiles/hit effects (on enemies)

R - Wild Growth

VFXFairy dust, an entirely new and pretty AoE, and cleaned up enemy hit and slow effects

Master Yi

Fixed a bug on Master Yi's passive.

Passive - Double Strike

BUGFIXFixed a bug where Master Yi's Double Strike stacks were lasting 3 seconds instead of 4


Q base damage decreased early.
We're reducing Nautilus' early all-in damage since he's currently too strong in higher areas of play.

Q - Dredge Line

BASE DAMAGE100/145/190/235/280  80/130/180/230/280


W base damage increased. R knockback distance and chunk spawn adjusted.
Zac is significantly weaker after his revert in 9.11. We're following up on his ultimate to be closer to the original version and helping out his early clear speed which has been slow.

W - Unstable Matter

BASE DAMAGE15/30/45/60/75  25/40/55/70/85

R - Let's Bounce!

KNOCKBACK DISTANCE400 units away from Zac  250 units from where target is hit
CELL DIVISION CHUNK SPAWNEach enemy champion spawns a chunk the first time they're hit by a bounce (subsequent bounces on the same enemy won't spawn additional chunks)  Each bounce that hits one or more enemy champions spawns a chunk (hitting the same enemy still spawns a chunk)


Corrupting Potion

Bonus magic damage flattened.
Corrupting Potion is a dominant choice in pro and higher skill play. We're taking it down a notch so other options have an opportunity to shine.
BONUS MAGIC DAMAGE15-30 (level 1-18) over 3 seconds  15 at all levels over 3 seconds

ARAM Balance Changes

We've made an adjustment to the calculations that go into designating your Champion Mastery Grade at the end of an ARAM game to better represent the nuances of the game mode! Additionally, more nerfs and buffs!
END OF GAME MASTERY GRADEModified calculations to be more accurate for ARAM

9.12 Nerfs

FIORA+8% damage dealt & -8% damage taken  No changes compared to other modes
JHIN-5% damage dealt  -8% damage dealt
KASSADIN+10% damage dealt & -5% damage taken  -5% damage taken
KATARINA+8% damage dealt & -8% damage taken  +5% damage dealt & -5% damage taken
LUX-10% damage dealt & +8% damage taken  -10% damage dealt & +10% damage taken
NIDALEE+15% damage dealt  +12% damage dealt
QUINN+10% damage dealt & -10% damage taken  +8% damage dealt & -8% damage taken
REK’SAI+18% damage dealt & -10% damage taken  +12% damage dealt & -10% damage taken
SEJUANI-10% damage taken  -8% damage taken
SONA-10% damage dealt & -15% healing done & -15% shielding done & +12% damage taken  -15% damage dealt & -18% healing done & -18% shielding done & +15% damage taken
TAHM KENCH+8% damage dealt & -8% damage taken  -5% damage taken
TALON+10% damage dealt & -5% damage taken  -5% damage taken
TRUNDLENormal  +5% damage taken
MORDEKAISER+5% damage dealt & -5% damage taken  No changes compared to other modes

9.12 Buffs

CORKINormal  +5% damage dealt & -5% damage taken
ELISE+5% damage dealt  +5% damage dealt & -5% damage taken
FIZZ+5% damage dealt  +5% damage dealt & -5% damage taken
GALIO+5% damage taken  No changes compared to other modes
ILLAOI+5% damage taken  No changes compared to other modes
JARVAN IVNormal  +5% damage dealt & -5% damage taken
KARTHUS-8% damage dealt  -6% damage dealt
KLEDNormal  +5% damage dealt & -5% damage taken
NOCTURNE+5% damage dealt & -10% damage taken  +10% damage dealt & -12% damage taken
RIVEN+5% damage dealt  +5% damage dealt & -5% damage taken
SWAIN-6% damage dealt & +6% damage taken  -5% damage dealt
YORICK-5% damage dealt & +8% damage taken  -5% damage dealt & +5% damage taken

VFX Updates


This update is aimed at reinforcing Amumu's Shuriman thematic and improving his gameplay clarity. We also tried to make it as close as possible to the style in his music video!
BASIC ATTACKNew hit effects
PASSIVE - CURSED TOUCHCleaned up existing effects
Q - BANDAGE TOSSAdded a subtle effect to show the width of his missile and brightened the tip of it
W - DESPAIRNow displays a reflection and has a better representation of the hitbox. New, more condensed impact effect.
E - TANTRUMNew AoE, now with sand, and a better representation of the hitbox
R - CURSE OF THE SAD MUMMYMore sand and actual Shuriman runes
ALL SKINSCleaned up to match the new effects on the base skin
SAD ROBOT AMUMUNew, robot-y effects across all his abilities


Mostly cleaned up his abilities to reduce noise, while adding a little bit of Freljordian flair.
BASIC ATTACKNew hit effects and adjusted weapon trails
PASSIVE - BATTLE FURYNew rage indicator effect
Q - BLOODLUSTMore visible heal effect with reduced noise
W - MOCKING SHOUTAdded a cast effect that shows range
E - SPINNING SLASHNew effect that shows the actual width of the AoE
R - UNDYING RAGENew activation and buff effects
ALL SKINSCleaned up to match the new effects on the base skin


We completely overhauled Ziggs' VFXs, focusing on showing the actual size of the his AoEs and bringing him up to modern standards.
BASIC ATTACKNew sparky missiles and hit effects
PASSIVE - SHORT FUSEEmpowered hits are more explode-y; missiles are more sparky
Q - BOUNCING BOMBMore sparks, new missile, and the explosion now leaves a crater that shows the size of the AoE
W - SATCHEL CHARGENew explosion that leaves behind a crater; new upward movement to reinforce the knock-up feel; new hit effects; adjusted AoE indicators to match hitbox
E - HEXPLOSIVE MINEFIELDSubtle trail on the missiles and range indicator on the mines. Also leave small craters on impact. And of course, more sparks!
R - MEGA INFERNO BOMBMUSHROOM CLOUD AND MORE SPARKS! New cast, indicators, missile, AoE, and hit effects.
MAD SCIENTIST ZIGGSNow with more bubbles and green goo
POOL PARTY ZIGGSCleaned up the noise on his abilities and adjusted to better match the rest of the skin line
SNOW DAY ZIGGSCleaned up the noise on his abilities and added some warmth to his missiles and explosions
ARCANIST ZIGGSAdded the crater in his ultimate and updated the indicator to match the base skin's
ODYSSEY ZIGGSAdded the crater in his ultimate


  • Warwick's Q - Jaws of the Beast tooltip now lists the correct AP ratio
  • Split rewards now display on Ranked Armor on the Loading Screen
  • The "End-of-Vote" flash on the Surrender box no longer re-appears when the timer expires for those who have already voted
  • The Surrender box can now be properly be moved around
  • Headhunter Nidalee's Q - Javelin Toss's javelins have been adjusted for colorblind players to better see them
  • Jhin's Q - Dancing Grenade now properly bounces to other targets even after its damage is consumed by Sivir's E - Spell Shield

Upcoming Skins & Chromas

The following skins will be released this patch. Grab the League Displays app for full-res splash art!
The following chromas will be released this patch:

Points of Interest from the 9.12 PBE Cycle

Here's a brief look at many of the new things included in patch 9.12. This coverage includes preview screen shots and video taken during the 9.12 PBE cycle and may vary slightly from what is pushed to live.

Champion Update: Mordekaiser

The Mordekaiser champion update will be available with patch 9.12!

Mordekaiser, the Iron Revenant

Updated Skins

Each of Mordekaiser's skins have also been updated:

Dragon Knight Mordekaiser

Infernal Mordekaiser

Pentakill Mordekaiser

Lord Mordekaiser
"Some of Mordekaiser's party complain that the Dark Paladin class is horribly overpowered and should be banned, despite its official inclusion in the latest Riftquest expansion. The rest of them are still waiting to discover the Dark Paladin's secret, redeeming, tragic backstory... but all they've been getting is a lot of murder instead."

King of Clubs Mordekaiser

Champion Skins

Three new skins are will be available sometime during the patch:

Dark Cosmic Jhin

1820 RP (Legendary)
"Jhin was an interstellar entity, consumed by the Dark Star and given new purpose. Now, his ageless mind is infected by visions of omnipotence, and consumed by an insatiable hunger. He scours entire regions of space seemingly on a whim, using the remnants to create bizarre, silent objets d'art."

Dark Star Karma

1350 RP
"Karma was a galaxy-spanning civilization dedicated to pacifism and personal enlightenment, unceremoniously erased from reality and reborn as a star-consuming horror. Devouring entire galactic systems, she enforces a dread order upon the cosmos, meditating in the vast oceans of emptiness where once there were stars."

Dark Star Shaco

1350 RP
"Shaco was once a region of space known for raucous celebration, wiped clean by the Dark Star and reborn into the mocking visage of a jester. His twisted cackling reaches inhabited systems long before he does, provoking visions of destruction, and societal breakdowns that will soon feed his endless hunger."


New sets of chroma for Dark Star Karma, Dark Star Shaco, and Dragonslayer Braum will be available sometime during the patch:

Dark Star Karma
[8 Chroma]

Dark Star Shaco
[5 + LPP Exclusive]

Dragonslayer Braum
[4 Chroma]

Summoner Icons

New summoner icons will be available sometime during the patch:

Dark Cosmic Jhin Icon, Dark Star Shaco Icon, Dark Star Karma Icon

2019 Bilibili Gaming Level 1 Icon, 2019 Bilibili Gaming Level 2 Icon, ETC.


LPL emotes will be available sometime during the patch:

2019 Bilibili Gaming, 2019 Dominus Esports, ETC.

Ward Skins

Forty-seven ward skins were added, and look to be for the Team/Fan pass, with a few blank placeholder wards and the rest with team logos:
Team logo texture examples:

VFX Updates for Amumu, Lulu, Tryndamere and Ziggs 

Here's Riot Sirhaian with a thread on VFX updates for this cycle, check out these VFX update spotlights:





Dark Cosmic Jhin Login Theme 

A new login theme featuring Dark Cosmic Jhin will be available sometime during the patch:


  • New loot assets added:
    • 4800 BE Champion Capsule: "Need a boost to break the League lull? This capsule contains a free unowned champion worth 4800 BE and a skin for that champion."
    • 3150 BE Champion Capsule: "Need a boost to break the League lull? This capsule contains a free unowned champion worth 3150 BE." 
    • Watermelon Orb: "For Turkey only! From this juicy and delicious orb, you can get one guaranteed skin shard with a 15% chance for bonus Orange essence equivalent to the upgrade cost, and 1.5x gemstone and mythic skin drops."

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