Patch 13.1 brings plenty of changes to the League of Legends 2023 season.

After a short holiday break, the devs at Riot Games are back to fortnightly patch changes for the 2023 season. Starting with patch 13.1, it brings about plenty of nerfs to some of the most popular picks in the meta while also buffing some niche picks.

With a total of 14 champions that have been updated, both Jax and Rammus received adjustments to their kit to hopefully strengthen their pick rate. Aside from that, a handful of items have also received changes alongside qualify of life updates and more.

Champions - Nerfs

Aatrox

Passive - Deathbringer Stance

Bonus Percent Maximum Health Damage: ~~5-12% (based on level)~~ ⇒ 4-10% (based on level)

E - Umbral Dash

Passive Increased Healing 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

Base Stats

Base Health: ~~653~~ ⇒ 613
Armor Growth: ~~4.2~~ ⇒ 3.7

E - Blunt Force Trauma

Bonus Attack Damage: ~~2.5/3/3.5/4/4.5% of maximum health~~ ⇒ 2/2.5/3/3.5/4% of maximum health

Fiora

Passive - Duelist's Dance

Maximum Health Damage AD Scaling: ~~4.5% maximum health true damage per 100 AD~~ ⇒ 4% maximum health true damage per 100 AD

Q - Lunge

Physical Damage: ~~70/80/90/100/110 (+ 95/100/105/110/115% bonus AD)~~ ⇒ 70/80/90/100/110 (+ 90/95/100/105/110% bonus AD)

K'Sante

Base Stats

Base Movement Speed: ~~335~~ ⇒ 330

Passive - Dauntless Instinct

Base Damage: ~~10-25 (based on level)~~ ⇒ 5-20 (based on level)

W - Path Maker

Minimum Physical Damage: ~~4.25/4.5/4.75/5/5.25% of target's maximum health~~ ⇒ 2/2.25/2.5/2.75/3% of target's maximum health
Maximum Physical Damage: ~~8.25/8.5/8.75/9/9.25% of target's maximum health~~ ⇒ 7/7.25/7.5/7.75/8% of target's maximum health

Yuumi

Q - Prowling Projectile

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

Zeri

Base Stats

Attack Damage Growth: 1.5 ⇒ 1.3

Q - Burst Fire

Total Base Physical Damage: ~~15/18/21/24/27~~ ⇒ 15/17/19/21/23

Champions - Buffs

Jayce

Base Stats

Base Attack Damage: 54 ⇒ 57

Q (Hammer Form) - To the Skies!

Base Physical Damage: ~~55/100/145/190/235/280~~ ⇒ 60/110/160/210/260/310

W (Hammer Form) - Lightning Field

Magic Damage Per Second: ~~25/40/55/70/85/100~~ ⇒ 35/50/65/80/95/110

Lissandra

Base Stats

Health Growth: ~~104~~ ⇒ 110

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

Shaco

Q - Deceive

Mana Cost: 60 ⇒ 40
Backstab Critical Strike Bonus Damage: ~~30%~~ ⇒ 40%

W - Two-Shiv Poison

Magic Damage: ~~70/95/120/145/170 (+75% bonus AD)(+60% AP)~~ ⇒ 70/95/120/145/170 (+80% bonus AD)(+60% AP)
Magic Damage to Targets Below 30% Health of Maximum Health: ~~105/142.5/180/217.5/255 (+112.5% bonus AD)(+90% AP)~~ ⇒ 105/142.5/180/217.5/255 (+120% bonus AD)(+90% AP)

Sion

Base Stats

Base Health: ~~615~~ ⇒ 655

Q - Decimating Smash

Damage When Fully Charged: ~~70/135/200/265/330~~ ⇒ 90/155/220/285/350

Twisted Fate

Q - Wild Cards

Cooldown: ~~6 seconds at all ranks~~ ⇒ 6/5.75/5.5/5.25/5 seconds

W - Pick a Card

Blue Card Magic Damage: 40/60/80/100/120 (+100% AD)(+90% AP) ⇒ 40/60/80/100/120 (+100% AD) (+115% AP)
Red Card Magic Damage: 30/45/60/75/90 (+100% AD)(+60% AP) ⇒ 30/45/60/75/90 (+100% AD)(+70% AP)

Xayah

Base Stats

Base Attack Speed/Attack Speed Ratio: ~~0.625~~ ⇒ 0.658

Champions - Adjusted

Jax

Q - Leap Strike

Physical Damage: ~~65/105/145/185/225 (+100% bonus AD)(+60% AP)~~ ⇒ 65/105/145/185/225 (+100% bonus AD) (+0% AP)

E - Counter Strike

Minimum Damage: ~~55/80/105/130/155 (+50% bonus AD) Physical Damage~~ ⇒ 55/85/115/145/175 (+4% max HP of the target) (+100% AP) Magic Damage
Bonus Damage per Attack Dodged: ~~20% of total damage~~ ⇒ 20% of base damage

R - Grandmaster's Might

Cooldown: ~~80 seconds~~ ⇒ 100/90/80 seconds
3rd Hit Passive Bonus Magic Damage: ~~100/140/180 (+ 70% AP)~~ ⇒ 80/120/160 (+ 60% AP)
(NEW) Imagine if I had a Real Animation: Jax’s R passive now has updated animations, sound effects, and visual effects
New Active: Jax swings his lantern around him, dealing 150/250/350 (+100% AP) magic damage to nearby enemies. If he hits a champion he gains 25/45/65 (+40% bonus AD) Armor plus 15/20/25% (+10% bonus AD) per champion hit, as well as 60% of that value as Magic Resist for the next 8 seconds. During this time the passive damage applies every 2nd attack instead of every 3rd.

Other

Imagine if I had a Real Icon: Jax’s spell icons have all been updated
Imagine if I had a Reel Weapon: Jax’s secret passive, fishing, has been added to the game

Rammus

Base Stats

Base Attack Damage: 56 ⇒ 53
Base Health: ~~634~~ ⇒ 614

W - Defensive Ball Curl

Flat Armor: 40 ⇒ 25
Percent Armor: ~~60/70/80/90/100%~~ ⇒ 40/55/70/85/100%
(NEW) OK Math: Flat resists granted by Rammus’ W are now also amplified by the percent resists that are granted by W

Items

Axiom Arc

Lethality: 10 ⇒ 18

Horizon Focus

Ability Power: 85 ⇒ 100

Jak'Sho, The Protean

Cost: 3100 ⇒ 3200
Voidborne Resilience Stacking: ~~2 per second (+15% total resists at max stacks)~~ ⇒ 2 per second (+20% bonus resists at max stacks)
Drain Damage: ~~3% of maximum Health~~ ⇒ 80 (+7% bonus Health)
(NEW) Champions ONLY: Voidborne Resilience’s drain damage will no longer affect minions and monsters

Rod of Ages

Health: ~~300~~ ⇒ 400
Eternity Move Speed Proc Requirement: ~~250 Healing or Mana Restoration~~ ⇒ 200 Healing or Mana Restoration>
Eternity Bonus Move Speed Amount: ~~25%~~ ⇒ 35%
Move Speed Duration: ~~2 seconds~~ ⇒ 3 seconds
(UPDATED) Move Speed Decay: Move speed gained from Eternity now decays more slowly

Passive - Eternity

(Note: These passive changes will also apply to Catalyst of the Aeons and Abyssal Mask)
Percent of Pre-Mitigation Damage Received Restored as Mana: 8% ⇒ 7%
Percent of Mana Cost Spent Restored as Health: ~~20%~~ ⇒ 25%
Maximum Heal per Cast/Second (for Toggled Abilities): 15 ⇒ 20

QoL Updates & Bugfixes

Coming to screens near you: Eternity’s Move Speed proc buff now appears on the player’s HUD
Top Off: Healing and mana restored when at full health/mana will now count towards Eternity’s Move Speed proc
Stack Check: Fixed a bug that was causing Eternity’s maximum heal cap to not correctly increase at maximum stacks

Archangel's Staff/Seraph's Embrace

Archangel's Staff

Total Cost: ~~2600~~ ⇒ 3000
Ability Power: 60 ⇒ 80
Ability Haste: 0 ⇒ 10
Passive - Awe: G~~rants Ability Haste equal to 0.5% of bonus mana~~ ⇒ Grants AP equal to 1% bonus mana

Seraph's Embrace

(REMOVED) Passive - Empyrean: The Empyrean passive of Seraph’s Embrace has been removed and replaced with Lifeline
(NEW) Passive - Lifeline: Upon taking damage that would reduce your Health below 30%, gain a 250 (+ 20% current Mana) shield (90-second cooldown)
Passive - Awe: ~~Grants Ability Haste equal to 1.3% bonus mana~~ ⇒ Grants AP equal to 2.5% of bonus mana

Winter's Approach

Winter's Approach

Total Cost: ~~2700~~ ⇒ 2600
Health: ~~350~~ ⇒ 400

Fimbulwinter

Health: ~~350~~ ⇒ 400

Runes

Legend: Tenacity

Tenacity per Legend Stack: ~~5% (+2.5% per Legend stack)~~ ⇒ 5% (+1.5% per Legend stack)
Maximum Tenacity at Full Stacks: ~~30%~~ ⇒ 20%

ARAM Adjustments

Buffs

Lifesteal Effectiveness on Minions: ~~50%~~ ⇒ 60% (Note: Marksmen are suffering the most after the changes, so we're returning a small amount of lifesteal power to slightly buff the entire class. As we're also changing marksmen's primary predators in juggernauts and assassins, we're taking a smaller step here to see if we need to do more for this class.)
Death Timers: Death timers at levels 1-18 have all been reduced by 1 second (Note: In patch 12.23, death timers were changed to be 3 seconds longer in the late-game. We are walking back a bit of that change, and closely monitoring game time while considering further changes.)
Draven: Outgoing Damage: ~~100%~~ ⇒ 105%
Kai’Sa: Outgoing Damage: ~~100%~~ ⇒ 105%, Attack Speed Scaling: ~~100%~~ ⇒ 102.5%
Kalista: Outgoing Damage: ~~105%~~ ⇒ 110%
Lucian: Outgoing Damage: ~~103%~~ ⇒ 105%, Tenacity: 0% ⇒ 20%
Lulu: Shield Modifier: ~~100%~~ ⇒ 110%
Nunu & Willump: Outgoing Damage: ~~108%~~ ⇒ 110%, Damage Received: ~~92%~~ ⇒ 90%, Tenacity: 0% ⇒ 20%
Udyr: Outgoing Damage: ~~100%~~ ⇒ 105%, Tenacity: 0% ⇒ 20%
Yuumi: Healing Modifier: ~~100%~~ ⇒ 110%
Zeri: Outgoing Damage: ~~105%~~ ⇒ 110%, Tenacity: ~~95%~~ ⇒ 90%

Nerfs

Bel’Veth: Outgoing Damage: ~~105%~~ ⇒ 100%, Damage Received: ~~95%~~ ⇒ 100%
Darius: Damage Received: ~~95%~~ ⇒ 100%, Healing Modifier: ~~120%~~ ⇒ 100%
Ekko: Damage Received: ~~95%~~ ⇒ 100%
Elise: Outgoing Damage: ~~110%~~ ⇒ 105%
Illaoi: Damage Received: ~~95%~~ ⇒ 100%
Irelia: Outgoing Damage: ~~105%~~ ⇒ 100%, Damage Received: ~~95%~~ ⇒ 100%
Kassadin: Damage Received: ~~95%~~ ⇒ 100%, Tenacity: ~~20%~~ ⇒ 0%
Katarina: Outgoing Damage: ~~105%~~ ⇒ 100%, Damage Received: ~~90%~~ ⇒ 100%
Kha’Zix: Outgoing Damage: ~~110%~~ ⇒ 105%, Damage Received: ~~85%~~ ⇒ 90%
Kled: Outgoing Damage: ~~105%~~ ⇒ 100%, Damage Received: ~~90%~~ ⇒ 100%
Maokai: Healing Modifier: ~~100%~~ ⇒ 80%
Mordekaiser: Outgoing Damage: ~~100%~~ ⇒ 95%, Damage Received: ~~100%~~ ⇒ 105%
Nilah: Outgoing Damage: ~~100%~~ ⇒ 95%, Healing Modifier: ~~100%~~ ⇒ 90%
Rek’Sai: Outgoing Damage: ~~110%~~ ⇒ 100%
Rengar: Outgoing Damag~~e: 108% ⇒ 100%, Healing Modifier: 120% ⇒ 100%~~
~~Sett: Outgoing Damage: 95%~~ ⇒ 90%
Sion: Outgoing Damage: ~~92%~~ ⇒ 90%, Damage Received: ~~108%~~ ⇒ 110%
Talon: Outgoing Damage: ~~110%~~ ⇒ 105%, Damage Received: ~~92%~~ ⇒ 95%
Teemo: Ability Haste: 0% ⇒ -20%, Outgoing Damage: ~~90%~~ ⇒ 85%
Urgot: Damage Received: ~~100%~~ ⇒ 110%
Zed: Outgoing Damage: ~~110%~~ ⇒ 100%
Ziggs: Ability Haste: 0% ⇒ -20%

Competitive

New Ranked rewards as you climb have been added! These are earned through obtaining Split Points by completing games. You earn 10 Split Points for a win, and 6 for a loss. Check out the rewards in the Ranked tab in the client.
The Ranked skin for Split 1 is earnable by players of all ranks, but the amount of Split Points required varies by rank: 80 points for Gold and above and 1600 points for Silver and below. In addition, once you earn the skin, it remains earned even if you were to demote. The skin will be distributed after the end of Season 2023 - Split 1.
Promotion Series have been reduced from a best of 5 to a best of 3
The restriction on duo-ing in Ranked Solo/Duo with an MMR of Masters or above is disabled until patch 13.3. Note that duo restrictions based on visible rank are still active, so a player who reaches Master or above will not be able to duo.
Visible rank is no longer used as matchmaking criteria, only MMR (Note: this was implemented in patch 12.23)
Career stats have been reset for the new ranked season

QoL Changes & Bugfixes

Rune Recommender

You can now directly navigate between the rune recommender and the editing page from the same screen
Smite will no longer be recommended as a summoner spell outside of the jungle role for champions whose most popular role is jungle

Champion Select

Champion names are now shown in ARAM champion select
Updated champion swapping visuals for improved clarity

Miscellaneous

Position preferences for draft modes (Primary + Secondary choice) are preserved between sessions and across queues

Bugfixes

Fixed a bug that caused Azir’s Sun Disc to be difficult to attack and sometimes appear as invisible to the enemy team when appearing over turret rubble in ARAM
Fixed a bug that caused Star and Pajama Guardian Ezreal’s Homeguard animations to not appear correctly
Fixed a bug that cause part of K’Sante’s R - All Out animation to not play when cast into Vi’s R
Fixed a bug that cause a square box to appear on the ground beneath Karthus when his Passive - Death Defied is triggered
Fixed an animation change where Viego transitions from Homeguard’s to walking
Fixed a bug that sometimes allowed Bard to cast W - Caretaker’s Shrine twice in a row
Fixed a bug that caused Mundo’s E - Blunt Force Trauma to do more damage to monsters than indeed
Fixed a bug that caused the camera to sometimes get stuck high above K’Sante on ARAM after casting his R - All Out
Fixed a bug that caused Braum so not get assist credit from his W - Stand Behind Me
Fixed a bug that was causing Braum’s W - Stand Behind Me to not play any VFX
Fixed a bug that was causing Amumu’s E - Tantrum Death Recap to not correctly display how much the ability’s cooldown was reduced by damage taken
Fixed a bug that caused Evenshroud’s Mythic Item tag not to display in the Item Shop
Fixed a bug that caused Unsealed Spellbook’s Smite to deal 0 damage when swapped to initially
Fixed a bug that cause Mordekaiser’s Passive - Darkness Rise to proc on small jungle monsters with abilities
Fixed a bug that caused debug text to appear in Lee Sin and Yone’s ability bar and death recaps
Fixed a bug that caused Ekko’s W - Parallel Convergence to sometimes stun enemies, even if they were not inside of the area of effect
Fixed a bug that allowed Kalista to attack two champions at once with Guinsoo’s Rageblade
Fixed a bug where Syndra could use her W - Force of Will grab and throw minions that were being teleported to
Fixed a bug that caused Kassadin’s W - Nether Blade to look like it’s cooldown was being reduced if E - Force Pulse was also on cooldown despite the cooldown not actually being reduced
Fixed a bug that caused Kassadin’s E - Force Pulse sound effects to not play when it is ready to be cast
Fixed a bug that caused jungle monsters to continuously reset aggro if attacking two overlapping Heimerdinger H-28G Evolution turrets
Fixed a bug that caused Iceborn Gauntlet and Bami’s Cinder Immolate effects to display two separate buff effects
Fixed a bug that caused the Identity Customizer dropdown functions to not filter consistently
Fixed a bug that sometimes caused Amplifying Tome to show up in shop as “purchased” in the Zhonya's Hourglass build path if you had a Broken Stopwatch in your possession
Fixed a bug that caused Vex’s Passive icon to not display on her buff bar

Patch 13.1, the first of the 2023 season is here