League of Legends 2021 Preseason Patch 10.23: New Items, Ranked System, Buffs, Nerfs, And More

Ali Ahmed Akib
By Ali Ahmed Akib
18 Min Read
Image Via Riot Games

League of Legends 2021 Preseason Patch 10.23 is just around the corner with new items, adjusted runes, removal of division promos, champion changes, and much more.

League of Legends Season 10 is coming to an end after twenty-two patches on November 10th. And in order to prepare for Season 11, Riot has revealed their plans for the upcoming preseason. Just like every other preseason, the 2021 preseason is also going to have some meta defining updates and changes.

The main spotlight of the 2021 preseason is the introduction of the new item class Mythic and Legendary items. In addition to that, Riot is also removing some common items that players are currently using while giving some major changes to the jungle items. Here’s everything you need to know about the League of Legends 2021 Preseason Patch 10.23.

Preseason Patch 10.23 Release Date

According to Riot Games, Season 10 Ranked season is going to end on Tuesday, November 10th, 2020 at 12:01 AM in local server time. However, Master and above will lock on November 9th, 11:45 PM.

And with the end of Season 10 Ranked, Preseason Patch 10.23 is going to release on November 11th.

Item System Overhaul

A couple of months earlier Riot Games announced that “Preseason 2021’s gameplay changes will focus on a fully upgraded shop interface and a top to bottom rework of the item system.” And following up on the goals, Riot has unveiled the new Mythic items for different champion class, added new Legendary and Epic items.

Mythic Items

Regarding the new Mythic items, Riot said “Mythic Items are the cornerstone of your builds, with big effects that define your playstyle from game to game.” Riot Scruffy also stated the new Mythic Items as “very powerful” and will “shape build and add unique stats to your other items.”

For the season 11 preseason, there will be a total of 23 Mythic Items in League of Legends. Here are all the Mythic Items for different champion class:

Legendary Items

According to Riot Scruffy, there will be 13 new, 28 reworked Legendary Items in the 2021 preseason along with 9 Epic items. However, with all the new items coming in, Riot will also remove some Legendary Items to balance the “too heavily overlapping.”

Check out all details about the the new and updated Legendary Items.

Cooldown Reduction reworked to Ability Haste

“We’re reworking CDR to enable more flexibility in how we use the stat and create clearer build choices, while still filling the purpose of letting you cast abilities more often,” Riot Games on reworking Cooldown Reduction to Ability Haste.

On the Cooldown Reduction, 10% CDR meant 11% more casts, 40% CDR is 66% more casts, and 50% CDR is 100% more casts. But in Ability Haste, it will be a linear power scaling model. This means from the preseason, 10 Ability Haste will be 10% more abilities cast, 20 will be 20% more, and so on.

New Jungle Change in Preseason

From the season 11 preseason, Jungle items upgrade will be entirely free. “We’re applying the same treatment to junglers: Jungle items will be a starting item that requires no additional investment,” Riot Games said.

Check out the details about the new Jungle Change in Preseason here.

One of the most notable jungle changes is Gromp will now provide heal and mana to its killer instead of Scuttle Crab.

Furthermore, Riot is also giving some major changes to the Jungle items as well. Check out the new Jungle items changes here.

Preseason Rune Changes

Riot is going to adjust 8 runes in the 2021 preseason. Here are the rune changes you need to know:


  • Adaptive force per stack: 1.7 – 4.2 (levels 1 to 18), 20.4 to 50.4 at max stacks to 2 to 5 (levels 1 to18), 24 to 60 at max stacks
  • Healing at max stacks: 15 percent (8 percent for ranged champions) to 9 percent (6 percent for ranged champions)

Legend: Bloodline

  • Maximum legend stacks: 20 stacks (12 percent life steal) to 15 stacks (9 percent life steal)

Ravenous Hunter

  • Healing: Heal for 1.5 percent (+2.5 percent per Bounty Hunter stack) of the damage dealt by your abilities, on-hit effects and items to 1 percent Omnivamp (+2 percent per Bounter Hunter stack)

Presence of Mind

  • Effect: After a 1-second delay, champion takedowns restore 20 percent of your maximum mana or energy and increase maximum mana by 100 or maximum energy by 10, stacking up to 5 times (max +500 mana or +50 energy) to Damaging an enemy champion increases your mana regeneration by 1.5 to 11 (levels 1 to 18) (80 percent for ranged) mana per second for 4 seconds. Energy users gain 1.5 energy per second instead. Takedowns restore 15 percent of your maximum mana or energy


  • Effect: Gain 10 percent CDR when you reach level 10. Each percent of CDR exceeding the CDR limit is converted to an adaptive bonus to Gain bonuses upon reaching the following levels: Level 5: +5 ability haste; Level 8 :: +5 ability haste; Level 11 :: On champion takedown, reduce the remaining cooldown of basic abilities by 20 percent

Cosmic Insight

  • Cooldown reduction: No longer increases your CDR cap or grants CDR
  • Item haste: 5 percent active item CDR to 10 item haste (applies to all item cooldowns)
  • Summoner Spell haste: 5 percent summoner spell CDR to 15 summoner spell haste

Ingenious Hunter

  • Ingenuity: Reduce the cooldown of item actives by 15 percent (+5 percent per Bounty Hunter stack) to Gain 10 item haste (+5 per Bounty Hunter stack). Item haste affects ALL item cooldowns, not just actives

Ability Haste rune stat

  • Stat gain: +1 to 10 percent CDR (levels 1 to 18) to 8 ability haste

Time Warp

  • Pace yourself: No longer puts the consumable on a short cooldown. If consumables are stacked, the instant restoration is applied after the duration of the initial consumable ends

Critical Strike Change

Reducing the value of each point of critical strike chance and offering less of it per item allows us to smooth out marksman’s build scaling and put more interesting-and powerful-unique effects on their items. They’ll be stronger early- and mid-game and their late-game damage will be less unilaterally based on constant crits since the other parts of their items will be more influential. Also, by spreading crit across five items (read: every non-boots slot) in marksman builds, we can put crit chance on more items because marksmen no longer run the risk of overcapping and losing access to items they otherwise would’ve wanted. 

  • CRIT CHANCE ON LEGENDARY/MYTHIC ITEMS 25% (4 items to max) ⇒ 20% (5 items to max)

Check out the Critical Strike Change here

Vamp Effects

The big change here is that life steal now counts physical damage dealt by on-hit effects-since the idea is “heal from your attacks,” it’s more understandable if we include the whole attack. The other note is the addition of “physical vamp,” (which currently exists just on Sanguine Blade) so its sustain can apply to assassins’ abilities too. If you’re curious whether that means we’ll eventually bring back spell vamp, the answer is “maybe!” 

LIFE STEAL Heal from physical damage dealt by basic attacks. Now includes on-hit effects. PHYSICAL VAMP Heal from physical damage dealt by basic attacks and abilities (33% effective for AoE and pet damage)OMNIVAMP Heal from all sources and types of damage (still 33% effective for AoE and pet damage) (unchanged)

Updated Item Shop

“The Recommended Page has been completely remade to better support our new recommendation system,” Mark Yetter on the new item shop. “This system will take into account a full tree of what your champion could build based on high-level player data and serve up viable item choices.”

Item Shop update preseason 2021
Image Via Riot Games

Riot Games also confirmed that there will be 100% new item icons in the shop while the Mythic items are having animated icons. The new updated Item Shop is going to have a better item recommendation and some other sorting options as well. New features are:

  • Recommended Items Tab
  • All items Tab
  • Popular Items
  • Quick access sidebar
  • Item search
  • Item icons
Updated Item Shop
Image Via Riot Games

There are a few extra features as well:

  • Stat filters (AD, AP, Ability Haste, Armor, etc)
  • Item sets
  • “Good against” champion recommendations for items
  • Enhanced Mythic item visuals
  • 100% icons updated (unfinished icons have a silly pink border right now)
  • Enhanced tooltips (shift functionality)

Check out all the details about the new Item Shop Update here.

Preseason Ranked Changes

For the upcoming preseason, Riot is bringing in some major changes to the League of Legends Ranked system. Here are the Preseason Ranked Changes:

  • Removed: Division Promos
  • Ranked Informed Matchmaking
  • Removed: Duo Queue in Master+
  • Ranked Seeding

Furthermore, League players will be able to Surrender after 10 minutes if there is an AFK in the team later into the preseason.

Buffs, Nerfs, and Balance Change for Preseason Patch 10.23

“It’s a big preseason, so much is changing that we don’t have our typical champion buffs and nerfs,” Riot on the preseason patch 10.23. However, they are adjusting 13 champions for the new item system and 30 champions are getting their mana pool adjusted.

Mana Changes:

Between mana changes to items like Tear, Sheen, Lich Bane, and the lack of mana on most Mythic items, we’re giving the following champions a +20 increase to mana growth:

  • Amumu
  • Anivia
  • Camille
  • Cassiopeia
  • Cho’Gath
  • Corki
  • Darius
  • Ekko
  • Ezreal
  • Fiora
  • Fizz
  • Gangplank
  • Hecarim
  • Irelia
  • Jax
  • Kassadin
  • Malphite
  • Nasus
  • Ornn
  • Ryze
  • Skarner
  • Sylas
  • Twisted Fate
  • Udyr
  • Vi
  • Viktor
  • Volibear
  • Wukong
  • Xin Zhao
  • Yorick
  • Zilean

Champions Changes


Passive – Headshot

  • Headshot damage from levels: 50/75/100 percent AD (levels 1/7/13) (unchanged)
  • Headshot damage from crit chance: (1.25 * (100 + Half your bonus critical damage percent) * critical chance) percent AD to (1.25 * (87.5 + Half your bonus critical damage percent) * critical chance) percent AD


Passive – Whisper

  • Crit damage reduction: 25 percent (crits deal 150 percent AD) to 14 percent (crits still deal 150 percent AD)
  • Crit chance to AD conversion: 40 percent to 30 percent


Passive – Absolution

  • Crit damage reduction: 35 percent (crits deal 130 percent AD) to 14 percent 9crits deal 150 percent AD)
  • Crit chance per 20 souls: 15 percent to 10 percent

R – Dawning Shadow

  • Pickup: Now collects Mists Wraths. Mist Wraths still only spawn near Senna


Passive – Battle Fury

  • Crit chance per fury point: 0.35/0.4/0.45/0.5 percent (levels 1/6/11/16) to 0.4 percent


Passive – Way of the Wanderer

  • [New] Overcapped: Critical strike chance above 100 percent is converted into 0.5 bonus AD per 1 percent additional critical strike chance. (Reminder: Way of the Wanderer doubles crit chance from other sources)


Passive – Way of the Hunter

  • [New] Overcapped: Critical strike chance above 100 percent is converted into 0.5 bonus AD per 1 percent additional critical strike chance. (Reminder: Way of the Wanderer doubles crit chance from other sources)


Q – First-Point Strike

  • Cost: 120/115/110/105/100 energy to 120/110/100/90/80 energy


Passive – Voracity

  • [New] On-hit: Dagger slash applies on-hit effects

E – Shunpo

  • [New] On-hit: Applies on-hit effects

R – Death Lotus

  • Reminder: Kat throws 15 daggers per ult.
  • Magic damage: 25/37.5/50 (+19 pecent AP) (+22 percent bonus AD) per dagger to 25/37.5/50 (+19 percent AP) per dagger
  • [New] Physical damage: 15 percent (+9.9 percent attack speed) bonus AD per dagger
  • [New] On-hit Each dagger applies on-hit effects at 25 percentefficiency


Passive – Divine Ascent

  • Bonus attack speed: 6 percent per Enrage stack to 6 percent (+2 percent AP) per Enrage stack


Passive – Living Forge

  • Forgeable items: Curated List to All Mythic items
  • Masterwork upgrade value: Dependent on item to 1000 gold
  • Masterwork Limit: 2 for Ornn, 1 for allies to 1 for Ornn and allies (since Ornn is still subject to the 1 Mythic limit)
  • Stat Bonus: Ornn gains an additional 10 percent bonus armor and magic resistance to Ornn gains an additional 10 percent bonus health, armor, and magic resistance
  • [New] Calloused hands: Ornn gains an additional 4 percent bonus health, armor, and magic resistance for each Mythic item he upgrades into a Masterwork


Mana growth: 25 to 45

Passive – Glorious Evolution

  • [Removed] Hex Core: Viktor no longer starts the game with an upgradable Hex Core.
  • [New] Harvest: Viktor harvests 1 Hex Fragments from minion and monster kills, 5 from large minion kills, and 25 from champion takedowns. He can spend 100 Hex Fragments to upgrade a basic ability. Once all three basic abilities have been upgraded, Chaos Storm is upgraded automatically.

E – Death Ray

  • Laser ratio: 60 percent to 70 percent
  • Aftershock ratio: 70 percent to 80 percent

Other champion changes


Passive – Blaze

  • Marked explosion damage: 10 to 14 percent (levels 1 to 9) to 10 to 14 percent (levels 1 to 17)


Health growth: 84 to 80

Armor: 33 to 30


Q – Venomous Bite

  • [New] On-hit: Now applies on-hit effects


Base mana regen: 10 to 8

Passive – Stage Presence

  • Note ratio: 7.5 percent AP to 6/7/8/9 percent AP (levels 1/6/11/16)

Q – High Note

  • Damage: 55/65/75/85/95 (+55 percent AP) to 55/70/85/100/115 (+40/45/50/55/60 percent AP)

E – Beat Drop

  • Base damage: 60/85/110/135/160 to 60/80/100/120/140
  • Damage to minions: 60/70/80/90/100 percent to 100 percent


Passive – Deadly Venom

  • [New] Damage ratio: 3 percent AP damage per second, per stack (max 108 percent AP for 6 s tacks over 6 seconds)

W – Venom Cask

  • [New] Slow ratio: 6 percent AP

E – Contaminate

  • AP scaling damage: 33.3 percent A[ physical damage per Deadly Poison stack (max 200 percent AP for 6 stacks) to 33.3 percent AP magic damage per Deadly Poison stack (max 200 percent AP for 6 stacks)


Passive – The Relentless Storm

  • Attack speed per stack: 5 percent to 5 percent (+4 percent AP)

E – Sky Splitter

  • Damage to minions: 150/25/350/450/550 to 150/300/450/600/750

Item Changes

There are going to be a lot of new items in League of Legends, and based on feedbacks Riot has adjusted a few of them in the PBE.


Here are all the skins releasing in patch 10.23:

ali ahmed akib
By Ali Ahmed Akib Editor-in-chief
Ali Ahmed Akib is the Co-Founder and Editor-in-chief of GameRiv. Akib grew up playing MOBA titles, especially League of Legends and is currently managing the editorial team of GameRiv.