League of Legends Patch 12.1 was released on Jan 4, 2022. This update included changes to 19 champions, with 4 buffs, 2 nerfs, 13 adjustments.
Items
Nerfs (3)
Going Rogue
- •New Effect: Now lasts indefinitely while affected by Chemtech Fog.
- •Tooltip now states that the bonuses while moving towards Scoundrels is only granted during Going Rogue.
Passive AP ratio and monster damage ratio increased.
Moonsilver Blade
- •Cleave AP ratio increased to 50% AP from 40% AP.
- •Damage against monsters increased to 300% from 250%.
Q mana cost and cooldown reduced.
Parrrley
- •Cooldown reduced to 4.5 seconds from 5.
- •Mana cost reduced to 55/50/45/40/35 from 60/55/50/45/40.
Jack in the Box
- •Bug Fix: Attack from boxes now benefit from Horizon Focus Hypershot.
Hallucinate
- •Bug Fix: Cooldown is correctly reduced by Axiom Arc when the clone is still alive.
Unburrowed E base damage adjusted. Burrowed E cooldown increased late.
Furious Bite
- •Base damage changed to 55/60/65/70/75 from 50/60/70/80/90.
Tunnel
- •Cooldown increased to 26/24/22/20/18 seconds from 26/23/20/17/14.
Armor growth reduced. E cooldown increased.
Stats
- •Armor growth reduced to 3 from 3.3.
Song of Celerity
- •Cooldown increased to 14 seconds from 12.
Traveler's Call
- •Bug Fix: Fixed a bug where the Meeps would become targetable after he traveled through Hexgates.
Tempered Fate
- •Bug Fix: Fixed a bug where it did not interact with Glacial Augment correctly.
Headshot
- •Bug Fix: Attacking an enemy marked by her Yordle Snap Trap or 90 Caliber Net no longer incorrectly grants Headshot stacks.
Yordle Snap Trap
- •Bug Fix: Fixed a bug where, if a champion got caught in Yordle Snap Trap at the same time as 90 Caliber Net, the extended Headshot range would get canceled.
90 Caliber Net
- •Bug Fix: Fixed a bug where she would sometimes be able to change her Headshot target while casting it.
H-28G Evolution Turret
- •Bug Fix: Deactivation sound effects have been restored for several of his skins.
CH-2 Electron Storm Grenade
- •Bug Fix: Explosion sound effects no longer play multiple times upon hitting an enemy.
Lamb's Respite
- •Bug Fix: Fixed a bug where it would heal champions more than it was supposed to.
Skaarl the Cowardly Lizard
- •Bug Fix: Fixed a bug where he would sometimes respawn with an incorrect amount of health.
- •Bug Fix: Fixed a bug where he could sometimes get hit by missiles immediately before or while dismounting, even though he should be untargetable in those moments.
Lightslinger
- •Bug Fix: Fixed a bug where, if he was silenced, his basic attacks would not have Lightslinger effects.
Siphoning Strike
- •Tooltip now includes bonus damage gained by stacks.
Comet Spear
- •Bug Fix: Fixed a bug where it would incorrectly go on full cooldown if interrupted within its tap-cast time.
- •Bug Fix: Range indicator has been fixed and will change between its tap-cast and hold-cast versions accurately.
Noxian Diplomacy
- •Bug Fix: Fixed a bug where it could sometimes hit untargetable enemy champions.
Shadow Surge
- •Bug Fix: Fixed a bug where, if she died while casting a consecutive Shadow Surge, its cooldown would not reset.
Blast Shield
- •Tooltip now clarifies the effect will trigger from abilities hitting structures.
Items
Force of Nature's payout was a bit too hard to reach due to the stack duration. It's also been a bit weaker than its counterpart, Spirit Visage, so, naturally, we’re adding more force to make it the heavy magic resist item.
General
- •Absorb stack duration increased to 7 seconds from 5.
- •Dissipate damage reduction increased to 25% from 20%.
General
- •New Effect: Tooltip now includes the number of wards currently placed.
General
- •New Effect: Tooltip now includes the number of wards currently placed.
Despite being weak overall, Eclipse was the strongest lethality Mythic before preseason. We overdid its buffs a bit in 11.23, so we're partially reverting those. (This change also applies to its Ornn Masterwork item, Syzygy.)
General
- •Ever Rising Moon cooldown for melee champions increased to 8 seconds from 6.
Immortal Shieldbow has made some marksmen and fighters a bit too, um, immortal. We're bringing it down a bit so that there are larger tradeoffs to consider when comparing it to other marksman Mythics. (Its Ornn Masterwork Item, Bloodward, will now have 65 AD and the same changes to Lifeline.)
General
- •Attack damage reduced to 50 from 55.
- •Lifeline shield reduced to 275/316.667/358.333/400/441.667/483.333/525/566.667/608.333/650 (at level 1/10/11/12/13/14/15/16/17/18) from 300/355.556/411.111/466.667/522.222/577.778/633.333/688.889/744.444/800 (at level 1/10/11/12/13/14/15/16/17/18).
- •Bloodward attack damage reduced to 65 from 70.
Wit's End has been powerful as an early defensive and offensive option for attack speed champions. However, considering its threat as a DPS item, its build path and stats counter magic damage a bit too much, too early.
General
- •New Recipe: Hearthbound Axe + Null-Magic Mantle + Pickaxe + 675 gold = 3100 gold.
- •Old Recipe: Hearthbound Axe + Negatron Cloak + Long Sword + 750 gold = 3100 gold.
- •Magic resistance reduced to 40 from 50.
General
- •Bug Fix: Flux now stacks correctly with the Ultimate Hunter rune.
General
- •No longer builds into Wit's End.
General
- •No longer builds into Wit's End.
General
- •Now builds into Wit's End.
General
- •Now builds into Wit's End.

Akshan
Diana
Gangplank
Shaco
Rek'Sai
Sona
Bard
Caitlyn
Heimerdinger
Kindred
Kled
Lucian
Nasus
Pantheon
Skarner
Sylas
Talon
Vex
Vi
Force of Nature
Vigilant Wardstone
Watchful Wardstone
Eclipse
Immortal Shieldbow
Wit's End
Axiom Arc
Long Sword
Negatron Cloak
Null-Magic Mantle
Pickaxe