League of Legends Patch 13.1 Notes: Jax mid-scope goes live, more Yuumi nerfs

Published: 2023-01-05T07:00:00

Updated: 2023-01-05T07:03:25

Season 13 of League of Legends kicks off with LoL patch 13.1 on the way. Riot is pushing through Jax’s promised mid-scope update, as well as all planned preseason changes, and also preparing for Yuumi’s rework: here are the full patch notes.

New year, new League of Legends season.

LoL Patch 13.1 is here to make Season 13 of League of Legends available to everyone, with the new ranked split starting and all pre-season changes finalized. Of course, everything is still a work in progress, but now it’s time to start the competitive climb.

The first 2023 update will include nerfs for powerhouses, tanks, and controversial cat Yuumi⁠—which will be reworked soon enough⁠—as well as big changes for Jax, with his promised mid-scope update ready to go live.

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Here’s what you need to know about League of Legends patch 13.1, including the notes and when it goes live.

Yuumi's official splash artRiot games

Yuumi nerfs come in for LoL patch 13.1 as Riot prepares to rework the cat later in Season 13.

When is LoL patch 13.1?

League of Legends Patch 13.1 is ready to go live January 10, 2023.

The first major patch of the year will roll out to Oceanic servers at 10am AEDT, with a global rollout for the rest of the day.

Here are the key times:

  • 3AM PT (NA)
  • 05:00 GMT (EUW)
  • 3AM CET (EUNE)
  • 8AM KST (Korea)

There will be a few hours of downtime when patching begins, and matchmaking queues will be taken offline about three hours in advance.

What changes in LoL patch 13.1?

League of Legends Season 13 begins, new ranked split

The big news of LoL patch 13.1, as the name implies, is the launch of Season 13 of League of Legends. After two months of preseason, all changes will be made official when the new ranked split begins.

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This includes the top lane and jungle revisions, as well as the new ranked system that splits the year in half. Players are now tempted to grind all year round rather than reach their target rank and quit, with rewards now available every six months instead of 12.

You can find the full list of League of Legends Season 13 changes here.

Victorious Sejuani in League of LegendsRiot games

The new ranked grind will begin after LoL patch 13.1 goes live.

Jax mid-scope update hits live servers

Jax was named next in line for a mid-scope update in late 2022, and Riot is taking no time to ship the changes to League of Legends.

The Grandmaster at Arms has remained relatively unchanged since 2009, with the Season 13 changes representing its biggest overhaul to date. It’s still on the “smaller side,” developer August ‘August’ Browning told players in November 2022, but it’ll still be quite a tweak to adapt to.

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While his Q, Leap Strike, and E, Counter Strike, are undergoing minor changes, most of the changes are in his ultimate, Grandmaster’s Might. It has a new active where its lantern deals extra damage, and its three-hit passive becomes a two-hit for eight seconds.

god staff jaxRiot games

Jax gets a rework

Yuumi nerved again as Riot devises future plans

Riot has more Yuumi nerfs planned to kick off League of Legends season 13 in patch 13.1. She’s one of seven champions destined for nerfs, and the devs are also targeting some powerhouses and tanks after the preseason item overhaul that shook up the rankings.

A bigger rework of Yuumi has already been confirmed by Riot, but the controversial cat is still getting changes because “she’s still highly banned,” developer ‘Phlox’ told players on Jan. 3.

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More changes are likely to come as the season gets underway and players begin to get back deep into the ranked rut.

Dr.  Mundo in League of LegendsRiot games

Dr. Mundo is one of six powerhouses or tanks that Riot plans to use in LoL patch 13.1.

You can find the early LoL patch 13.1 notes below, courtesy of Riot. These will be updated with PBE details as January 10 approaches.

LoL patch 13.1 notes



Passive: Deathbringer attitude

  • Damage: 5-12% Max HP Physical Damage ⇒ 4-10% Max HP Physical Damage

E: Umbral Dash

  • Omnivamp during World Ender: 25/30/35/40/45% ⇒ 20/24/28/32/36%

R: World Ender

  • Bonus movement speed: 60/80/100% ⇒ 50/65/80%

Dr. Mundo

Basic statistics

  • Health: 653 ⇒ 613
  • Armor growth: 4.2 ⇒ 3.2

E: Blunt trauma

  • Bonus attack damage: 2.5/3/3.5/4/4.5% max HP ⇒ 2/2.5/3/3.5/4% max HP


Passive: Duelist’s Dance

  • Vital Real Damage: 3% max HP + 4.5% per 100 bonus AD ⇒ 3% max HP + 4% per 100 bonus AD

Q: Lunge

  • Damage: 95/100/105/110/115% bonus AD ⇒ 90/95/100/105/110% bonus AD


Basic statistics

  • Movement speed; 335 ⇒ 330

Passive: fearless instinct

  • Base damage: 10-25 ⇒ 5-20

W: Pathmaker

  • Minimum damage: 4.25/4.5/4.75/5/5.25% max HP of target ⇒ 2/2.25/2.5/2.75/3% max HP of target
  • Maximum damage: 8.25/8.5/8.75/9/9.25% maximum HP of the target ⇒ 7/7.25/7.5/7.75/8% maximum HP of the target



Basic statistics

Q: To Heaven! / Shock explosion

  • To heaven! damage: 55/100/145/190/235/280 ⇒ 65/115/165/215/265/315

W: Lightning field / Hypercharge

  • Lightning field damage per tap: 25/40/55/70/85/100 ⇒ 35/50/65/80/95/110


Basic statistics

Q: Ice shard

  • Slow: 16/19/22/25/28% ⇒ 20/24/28/32/36%

W: Ring of Frost

  • Cooldown: 14/13/12/11/10 seconds ⇒ 12/11/10/9/8 seconds


Basic statistics

  • Attack damage: 56 ⇒ 53
  • Health: 634 ⇒ 614

W: Defensive ball curl

  • Percentage of bonus resists now boosts flat resists from W
  • Base armor gained: 40 ⇒ 25
  • Percentage of armor gained: 60/70/80/90/100% ⇒ 40/55/70/85/100%


Q: Cheating

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  • Mana cost: 60 ⇒ 40
  • Backstab critical hit bonus damage: 30% ⇒ 40%

E: Two-Shiv Poison


Basic statistics

Q: Decimating Smash

  • Max damage: 70/135/200/265/330 ⇒ 90/155/220/285/350

Twisted fate

Q: Wild cards

  • Cooldown: 6 seconds ⇒ 6/5.75/5.5/5.25/5 seconds

W: Choose a card

  • Blue Card AP Ratio: 90% ⇒ 115%
  • Red Card AP Ratio: 60% ⇒ 70%


Basic statistics

  • Basic attack speed: 0.625 ⇒ 0.658
  • Attack Speed ​​Ratio: 0.625 ⇒ 0.658


Question: Prowling projectile

  • Base Damage: 50/90/130/170/210/250 ⇒ 50/80/110/140/170/200
  • Empowered Damage: 60/110/160/210/260/310 ⇒ 60/100/140/180/220/260


Basic statistics

  • Attack damage growth: 1.5 ⇒ 1.3

Q: Fire erupt

  • Active Damage: 15/18/21/24/27 ⇒ 15/17/19/21/23


Axiom Arc

Horizon focus

  • Power force: 85 ⇒ 100

Jak’Sho, the Protean

  • Cost: 3100 gold ⇒ 3200 gold
  • Resists won: 2 per second + 15% total at maximum stacks ⇒ 2 per second + 20% total at maximum stacks
  • Discharge amount: 3% maximum HP ⇒ 80 + 7% maximum HP
  • No more emptying minions or monsters

Rod of the Ages

  • Health: 300 ⇒ 400
  • Eternity resources restored to movement speed improvement proc: 250 ⇒ 200
  • Eternity movement speed: 25% ⇒ 35%
  • Various QoL changes and bug fixes

Seraph’s embrace

  • Cost: 2600 gold ⇒ 3000 gold
  • Ability: 60 ⇒ 80
  • Ability Haste: 0 ⇒ 10
  • Gives Haste equal to 1.3% bonus mana ⇒ Gives AP equal to 2.5% bonus mana
  • Empyrean passive removed
  • Added lifeline passive: Grant 250 + 20% current mana as a health shield

The approach of winter

  • Cost: 2700 gold ⇒ 2600 gold
  • Health: 350 ⇒ 400


Legend: Tenacity

  • Tenacity: 5% + 2.5% per Legend stack ⇒ 5% + 1.5% per Legend stack

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