League of Legends patch 12.15 notes: Big energy changes, more Sivir nerfs

Andrew Amos
Monster Tamer Lulu and Kog'Maw in League of Legends

League of Legends patch 12.15 is on its way, and the big topic is energy champions. Ionian favorites like Zed and Shen have struggled post-durability update, and Riot wants to help them. Sivir, Gwen, and Taliyah are also being nerfed again: here’s the full notes.

There’s only a few patches between now and Worlds 2022, and Riot is starting to hone in on the meta with LoL patch 12.15.

The developers have earmarked some oppressive picks requiring action: Sivir, Gwen, and Taliyah are once again in the nerf column after their recent dominance. However, there’s also some buffs planned that could bring a subclass back into the fray: energy champions.

Plus there’ll be a new range of Monster Tamer skins as part of the release as the Star Guardian event nears its end.

Here’s what you need to know about League of Legends patch 12.15, including when exactly the update will drop.

Cafe Cuties Gwen
Gwen is in the patch notes again — now we just need Zeri and everything is normal in LoL patch 12.15.

When is LoL patch 12.15?

League of Legends patch 12.15 is primed to go live on August 10, 2022, right on schedule.

The fifteenth major patch of 2022 will start rolling out on Oceanic servers at 10AM AEST, with a worldwide rollout taking place across the rest of the day.

Here’s the key timings:

  • 3AM PT (NA)
  • 5AM GMT (EUW)
  • 3AM CET (EUNE)
  • 8AM KST (Korea)

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

Star Guardian Akali in League of Legends
Energy champions are in focus in LoL patch 12.15.

What’s changing in LoL patch 12.15?

Energy champions rework following durability update

The durability update completely flipped League of Legends on its head, and the aftermath is still being felt out. Healing has been a big priority for Riot in the patches since, but in LoL patch 12.15 their focus is shifting a bit towards energy champions.

With fights dragging along for longer, energy champions are finding themselves running out of resources much quicker than anyone else. Riot are pushing things along with small buffs to all of them to even things out. This will include: Akali, Kennen, Lee Sin, Shen, and Zed.

Akali and Shen will have increased energy refunds on their W and E respectively, while Zed and Lee Sin are having their base energy costs cut.

Kennen will be an outlier in that he won’t get a direct energy buff: “We like where Kennen’s energy costs are, so we’re buffing something else instead,” developer Matt ‘Phroxzon’ Leung-Harrison told players.

More nerfs for meta picks like Sivir, Gwen, and Taliyah

LoL patch 12.15 will include more of the same balancing updates for meta picks. Names like Sivir, Gwen, and Taliyah have cropped up in the patch notes a lot recently, and they’ll continue to do so in the run into Worlds.

The trio of champions will be joined by Master Yi (also targeted after his Meditate rework), as well as the recently-buffed Qiyana and pro play staple Kalista.

None of the nerfs are too serious. They range from base stat changes (less AD for Kalista) to cooldown adjustments (Taliyah and Sivir). The update is more nudging champions towards the middle rather than swinging them too far out of the meta.

For buffs, five other champions are in Riot’s sights: Lillia, Singed, Rammus, Leona, and Thresh. This will lead to some shifts in the support and jungle meta, but nothing too drastic as Riot looks towards bigger preseason changes for all the roles.

Pizza Delivery Sivir in league of legends
Sivir nerfs are still coming in thick and fast following her mid-scope update.

Not much has changed from Phroxzon’s preview set of notes other than Silvermere Dawn’s HP buff being reverted and the First Strike Qiyana bug getting fixed. This bug allowed Qiyana to proc First Strike twice, making her a terror in solo queue and making this bugfix a big nerf to the champion.

You can find the full League of Legends patch 12.15 notes below, courtesy of Riot.

LoL patch 12.15 notes



W: Twilight Shroud

  • Energy Restoration 80 ⇒ 100
  • Max Energy increase 80 ⇒ 100


Q: Snip Snip!

  • True damage conversion at center: 75% ⇒ 50%


Base stats

  • Attack damage: 69 ⇒ 66


W: Electrical Surge

  • Cooldown: 14/12/10/8/6 seconds ⇒ 13/11.25/9.5/7.75/6 seconds
  • Damage: 60/85/110/135/160 ⇒ 70/95/120/145/170

R: Slicing Maelstrom

  • AP ratio: 20% ⇒ 22.5% per bolt

Lee Sin

Q: Sonic Wave / Resonating Strike

  • Recast energy cost: 30 ⇒ 25

W: Safeguard / Iron Will

  • Recast energy cost: 30 ⇒ 25

E: Tempest / Cripple

  • Recast energy cost: 30 ⇒ 25


Q: Shield of Daybreak

  • Mana cost: 45/50/55/60/65 ⇒ 35/40/45/50/55

R: Solar Flare

  • Crowd control duration: 1.5 seconds ⇒ 1.75 seconds


Passive: Dream-Laden Bough

  • Monster damage cap: 40-100 ⇒ 50-150

Master Yi

E: Wuju Style

  • Cooldown: 18/17/16/15/14 seconds ⇒ 18 seconds


Passive: Royal Privilege

  • Damage AD ratio: 45% ⇒ 30%
  • Fixed a bug where Qiyana could apply First Strike twice due to an interaction with her passive


R: Soaring Slam

  • Cooldown: 110/95/80 seconds ⇒ 90 seconds
  • Base cast range: 600 ⇒ 800
  • Dash speed increased by 200
  • Range growth per movement speed ratio: 1.3 ⇒ 1.5


E: Shadow Dash

  • Energy refund: 30/32.5/35/37.5/40 ⇒ 30/35/40/45/50


Passive: Noxious Slipstream

  • Movement speed: 20% ⇒ 25%
  • Per target cooldown: 10 seconds ⇒ 8 seconds

R: Insanity Potion

  • Bonus stats: 20/60/100 ⇒ 30/65/100


Base stats

  • Attack damage growth: 3.3 ⇒ 3

E: Spellshield

  • Cooldown: 22/20/18/16/14 seconds ⇒ 24/22.5/21/19.5/18 seconds

R: On The Hunt

  • Cooldown: 100/85/70 seconds ⇒ 120/100/80 seconds


E: Unraveled Earth

  • Cooldown: 16/15/14/13/12 seconds ⇒ 18/17/16/15/14 seconds

R: Weaver’s Wall

  • Wall duration: 5 seconds ⇒ 4 seconds


Q: Death Sentence

  • Cooldown: 20/18/16/14/12 seconds ⇒ 19/17/15/13/11 seconds
  • Damage: 80/120/160/200/240 ⇒ 100/140/180/220/260


W: Living Shadow

  • Shadow spell mimic range: 2000 ⇒ Infinite

E: Shadow Slash

  • Energy cost: 50 ⇒ 40


Divine Sunderer

  • Healing conversion: 65% ⇒ 55%

Mercurial Scimitar

  • Magic resist: 30 ⇒ 40
  • Movement speed duration: 1 second ⇒ 1.5 seconds

Silvermere Dawn

  • Magic resist: 35 ⇒ 40
  • Slow resist and tenacity: 40% ⇒ 50%


First Strike

  • Bonus true damage: 10% ⇒ 9%