League of LegendsPatch Notes

LoL Patch 26.18 Notes: Cassiopeia Adjustment, Ekko & Kassadin Buffs, Worlds 2026 Meta

Full LoL Patch 26.18 changes (Sept 10): Cassiopeia adjustment, Ekko and Kassadin buffs, Zeri nerf, Rageblade change and the first Worlds 2026 meta shift.

C
Coach LoLBy ElevateBoost
September 8, 20268 min read
LoL Patch 26.18 Notes: Cassiopeia Adjustment, Ekko & Kassadin Buffs, Worlds 2026 Meta

Key takeaways

  • Patch 26.18 goes live Thursday, September 10, 2026 - the first Worlds-focused patch.
  • Cassiopeia gets a power-neutral adjustment: less base power, more AP scaling.
  • Notable buffs for Ekko, Kassadin, Master Yi, Viego and Zaahen.
  • Nerfs for Zeri, Seraphine, Syndra, Nautilus and Bard; Guinsoo's Rageblade gets a buff.

League of Legends Patch 26.18 lands on Thursday, September 10, 2026 and marks the first real balance push toward Worlds 2026. Headlining the update: a deep adjustment to Cassiopeia, buffs for Ekko, Kassadin, Master Yi, Viego and Zaahen, several nerfs (Zeri, Seraphine, Syndra, Nautilus, Bard) and a small buff to Guinsoo's Rageblade. The values below come from Riot's official preview (Phroxzon) and stay provisional until the official patch notes drop on release day.

LoL Patch 26.18 at a glance

This is a focused patch with big implications: Riot is starting to tune the competitive meta ahead of Worlds, which affects both the ranked ladder and pro play. It ships on a Thursday (instead of the usual Wednesday), around 3 PM CT in North America. The theme: making AP-scaling mages more reliable again while reining in carries that grew too strong after recent item changes.

Buffs: Ekko and Kassadin scale harder

The patch's winners are mostly mid-lane mages and bruisers. Ekko gains waveclear and scaling, Kassadin sharpens his late-game burst, while Master Yi, Viego and Zaahen recover durability or consistency after earlier nerfs.

  • Ekko — Timewinder (Q) : mana 50-90 ⇒ 40-80 · return AP ratio 60% ⇒ 70%
  • Kassadin — Null Sphere (Q) : AP ratio 70% ⇒ 80% · Riftwalk (R) base 70/90/110 ⇒ 80/95/110
  • Master Yi — armor growth 4.5 ⇒ 5 / level · Highlander (R) move speed 35-55% ⇒ 40-60%
  • Viego — Sovereign’s Domination (passive) : heal +2% per 500 bonus HP (new) · AD growth 3.5 ⇒ 4
  • Zaahen — The Darkin Glaive (Q) : Q on cooldown on resurrection · Q2 25/50/75/100/125 ⇒ 30/60/90/120/150
Ekko, one of the champions buffed in League of Legends Patch 26.18
Ekko is among the biggest winners of Patch 26.18, with mid-lane focused buffs.

Nerfs: Zeri, Seraphine and Syndra get reined in

On the losing side, Riot targets overrepresented or frustrating champions. Zeri loses AD scaling on her W after benefiting from the Hurricane rework, Seraphine's damage roles are weakened through her E cooldown, and Syndra loses mana while gaining cooldown on her W.

  • Bard — armor 34 (+5/lvl) ⇒ 32 (+4.7/lvl)
  • Nautilus — AD 61 (+3.3/lvl) ⇒ 58 (+3.3/lvl) · Dredge Line (Q) 85-265 ⇒ 85-245 (+90% AP)
  • Seraphine — Beat Drop (E) cooldown 11-9s ⇒ 11s
  • Syndra — Splinters of Wrath (passive) mana 20-255 ⇒ 20-199 · Force of Will (W) cooldown 12-8s ⇒ 13-9s
  • Zeri — Ultrashock Laser (W) +120% total AD ⇒ +100% total AD · wall damage +180% ⇒ +150% total AD

Cassiopeia: the patch's central adjustment

Too strong in pro play but underwhelming for the average player, Cassiopeia gets a power-neutral adjustment: Riot pulls power out of her early game (movement speed, base damage) and moves it into her AP ratios. The goal is to make her less reliable when you miss Qs in lane, but more rewarding when you build AP. The total ratio on her Twin Fang (E) stays unchanged at 65%.

  • Serpentine Grace (passive) : move speed 6-40% ⇒ 5-35%
  • Twin Fang (E) : mana 40 ⇒ 45 · base AP ratio 10% ⇒ 20% · enhanced AP ratio 55% ⇒ 45% (total unchanged 65%) · base damage 52-120 ⇒ 50-118
  • Noxious Blast (Q) : 75-215 (+65% AP) ⇒ 65-205 (+75% AP)
  • Petrifying Gaze (R) : 150/250/350 (+50% AP) ⇒ 125/225/325 (+75% AP)

Items: Guinsoo's Rageblade gets some power back

After Rageblade was re-scripted in 26.14 (Phantom Hit trigger moved from 6 to 7), Riot is giving some power back to the item and the champions hit hardest, like Master Yi. Seething Strike stack duration goes from 3 to 4 seconds, making the attack-speed buff easier to maintain.

  • Guinsoo’s Rageblade — Seething Strike stack duration 3s ⇒ 4s
Coach tip: a pre-Worlds patch reshuffles the deck. AP-scaling mages (Cassiopeia, Kassadin) become more reliable over a game - play the lane phase safely to reach your power spike. Need a boost before the season ends? ElevateBoost boosting and coaching helps you turn the new meta into LP.

Caps Hall of Legends skins and the road to Worlds 2026

Patch 26.18 also brings the Caps Hall of Legends skin line, celebrating the Western GOAT, with a dedicated event and a premium signature Tristana. More importantly, it is the first patch to clearly steer balance toward Worlds 2026: expect further adjustments in 26.19 and the tournament patch before the meta locks in.

Patch 26.18 rewards players who adapt their pool to the meta. Use the pre-Worlds window to lock in one or two buffed champions and climb before the meta settles. To save time, check out ElevateBoost's League of Legends boosting - guaranteed rank, coaching available.

FAQ

When does LoL Patch 26.18 release?
Patch 26.18 goes live on Thursday, September 10, 2026, a day later than usual. Rollout starts in the late US afternoon, around 3 PM CT (NA).
What is the biggest change in Patch 26.18?
The Cassiopeia adjustment: Riot shifts power from her early game into her AP scaling, leaving the total ratio on her Twin Fang (E) unchanged at 65%.
Which champions are buffed in 26.18?
Ekko, Kassadin, Master Yi, Viego and Zaahen get buffs. Ekko and Kassadin mainly gain AP scaling in the mid lane.
Which champions are nerfed in 26.18?
Zeri, Seraphine, Syndra, Nautilus and Bard are toned down. Zeri loses AD scaling on her W after the Hurricane changes.
Why does this patch matter for Worlds 2026?
It is the first patch that starts balancing the game for Worlds: the changes target both pro play and the ladder, previewing the end-of-season meta.

Ready to take action?

Our verified top 1% boosters can help you climb starting today.

Order a boost →