Patch 26.20 Preview Reshapes the Worlds Meta

Riot’s full preview for League of Legends Patch 26.20 lays out the last scheduled balance pass before Worlds 2026. Balance lead Matt Leung-Harrison names buffs for 11 champions, nerfs for five, two item reductions and an adjustment to the Hextech Rocketbelt. Release is expected on October 7, eight days before Worlds opens on October 15. Every figure here comes from the preview rather than finalized live notes, so individual numbers may still change before launch.

Key buffs hit specific combat variables

Diana’s W bonus-health ratio is slated to climb from 11% to 14%. Kennen’s E bonus attack speed rises at each rank, from 40/50/60/70/80% to 50/60/70/80/90%. Lucian’s attack damage growth goes from 2.5 to 2.9. Mordekaiser has two listed revisions: the level-scaled Q bonus changes from 0-55 to 0-66, and the R cooldown drops from 140/120/100 to 130/110/90 seconds.

The nerfs are just as concrete. Ambessa’s passive maximum bonus damage shifts from 5-30 plus 25% bonus AD to 5-25 plus 20%. Cassiopeia’s W cooldown extends from 24/22/20/18/16 to 26/24/22/20/18 seconds. K’Sante’s W mana cost rises from 40/45/50/55/60 to 50/55/60/65/70. Each change trims damage or availability instead of removing part of a kit, and how much they matter in competitive play is guesswork until teams scrimmage on the new patch.

Rocketbelt swaps haste for heavier damage

The Rocketbelt counts as an adjustment because one stat drops while another climbs. Ability haste falls from 20 to 10, while Supersonic damage rises from 100 plus 10% AP to 135 plus 15% AP. Calling that purely a buff or a nerf would obscure the tradeoff. Under these preview numbers, the item grants fewer repeated ability uses through haste but hits harder on its active.

The remaining item edits are both reductions. Experimental Hexplate is limited specifically for ranged users, and Runaan’s Hurricane appears on the broader reduction list. Precise values for these two items are not included here, since the source material lacks a complete, stable set at the same level of detail. Their inclusion matters, yet an invented figure would be less useful than an accurate boundary.

Timing adds pressure without guaranteeing a meta shift. A projected October 7 release gives teams eight days before Worlds begins on October 15 to digest the final notes. The preview, however, does not show which champions will be picked, banned or ignored. A longer list on paper does not prove that a champion will dominate the stage.

The gap between preview and live notes matters most for Varus and Sylas. Both were removed from the preview, so they are absent from the current changes. Riot could still revise the list before launch, but readers should not carry an earlier proposal into their final summary. Once the official patch notes are published, they will serve as the definitive reference.

Among the champion changes with precise numbers, Kennen gains a flat 10-percentage-point boost to E bonus attack speed at every rank. Lucian’s attack damage per level rises by 0.4. Mordekaiser’s ultimate cooldown drops by 10 seconds at each rank. These comparisons show how large the proposals are, but they do not predict how many games will be affected.

The preview works better as a checklist for players and teams than as a finished competitive verdict. Buff and nerf labels reflect Riot’s intended direction, while actual in-game behavior depends on the final notes and the matches that follow. Confirm the October 7 release before treating any listed value as settled.

• Buffs: Diana, Kennen, Kindred, Lillia, Lucian, Mordekaiser, Neeko, Smolder, Tahm Kench, Vayne and Swain.
• Nerfs: Ambessa, Ashe, Cassiopeia, K’Sante and Yunara.
• Item reductions: Experimental Hexplate (ranged users) and Runaan’s Hurricane.
• Pulled from the preview: Varus and Sylas.

Patch 26.20’s preview gives Worlds teams a broad balance list and several exact proposed values, yet it is not the final patch record. The expected October 7 release will settle what goes live before Worlds starts on October 15.