Teamfight Tactics Patch 15.9 brings huge Viego and Xin Zhao changes
Jack Stewart, Senior Editor
Last Updated: 18/11/2025
Riot Games has released the patch notes for Teamfight Tactics (TFT) Patch 15.9, the final update of K.O. Coliseum.
The new update sees the return of the Choncc’s Treasure mode and some rather substantial balance changes.
This is the final update before the release of TFT’s new set with 100 champions, Lore and Legends.
Here is everything new in TFT Patch 15.9 for the final weeks of K.O. Coliseum and Revival: Uncharted Realms too.
Choncc’s Treasure returns to TFT with new changes

Choncc’s Treasure is back until December 2nd with some changes to try and balance the mode as one easter egg was being abused too often.
New Encounter:
Choncc’s Training Arc – Each visit from Choncc will now include a Power Snax
New Items:
Choncc’s Crown: Your team gains +2 max team size. 10% chance to drop 1 gold when you win combat.
Choncc’s Chalice: Your team gains +1 max team size. 10% chance to drop 1 gold when you win combat.
Choncc’s Spork: The wearer gains +1 to all of their listed non-unique traits.
Large changes on TFT Patch 15.9
Traits

As it’s the last patch of K.O. Coliseum, Riot wants to give players more chances to hit a Prismatic.
One of the ways they’re doing that is giving Viego the Edgelord trait, which should significantly shake up the game.
Battle Academia Prismatic Breakpoint: 160 items in combat >>> 140 items in combat
Edgelord AD: 15/40/60% >>> 15/30/60%
Mighty Mech 5 Piece Mana: 40/80 >>> 30/70
Star Guardian Prismatic Breakpoint: 18500 Mana >>> 16000 Mana
Viego is now also an Edgelord
Unit changes in TFT Patch 15.9

Riot is also buffing units to give more of them a chance of being part of a winning comp.
Xin Zhao is also getting a pretty substantial health decrease, likely to fit in from the new lore of him sacrificing himself for League of Legends’ new champion Zaahen who will debut in TFT in the Lore and Legends set.
Aatrox Base AD: 50 >>> 60
Aatrox Spell Damage: 100/150/225 AD >>> 120/180/270 AD
Ezreal AS On Cast: 25% >>> 35%
Kobuko Mentor spell damage scales properly with Attack Damage.
Lux Mana: 20/60 >>> 10/50
Xin Zhao Health: 800 >>> 700
Xin Zhao Base AD: 50 >>> 60
Xin Zhao Innately gains 10% Omnivamp
Caitlyn AS: 0.75 >>> 0.8
Jayce Spell Damage: 180/270/425 AD >>> 200/300/480 AD
Senna Damage: 360/540/875 AD >>> 400/600/960 AD
Senna Damage After 2 Targets: 22% >>> 30%
Karma Spell Damage: 1100/1650 AP >>> 1160/1750 AP
Returning Power Ups in TFT Patch 15.9
With it being the last patch, Riot is throwing caution to the wind and bringing back a lot of Power Ups, including some that led to lines a little too powerful.
Frost Touch Weight: 10
Frost Touch Champions: Twisted Fate, Ashe, Xayah
Fusion Dance Weight: 15
Fusion Dance Champions: Garen (Schoolyard Justice), Shen (Twilight Assault), Vi (Knuckleduster), Jayce, Darius, Gwen
Stretchy Arms Weight: 15
Stretchy Arms Champions: Gangplank, Viego, Yone
Power Up buffs in TFT Patch 15.9

Lastly, Riot is buffing some of the more enjoyable Power Ups in the set.
2X Contender Damage Amp Per Champ: 4% >>> 5%
2X Contender Durability Per Champ: 2% >>> 3%
All Out AD: 50% >>> 60%
Fan Service Rakan Health: 115/225 >>> 150/275
Golden Edge Attacks Per Gold: 85 >>> 72
Hat Trick AD/AP Per Hat: 0.75 >>> 1
Kahunahuna Re-added to Gnar
Kahunahuna True Damage: 150% AD >>> 175% AD
Mech Pilot Health Share: 25% >>> 35%
Mech Pilot Stat Share: 35% >>> 45%
Midas Touch Gold Chance: 25% >>> 35%
Midas Touch Weight: 5 >>> 10
Pack Tactics Packmate Damage: 18% >>> 22%
Rising Chaos Damage Per Orb: 6% >>> 7%
Shadow Clone Added to Ryze, Janna, Braum
Stalking Dart Damage Per Foxfire: 6% >>> 7.5%
Revival: Uncharted Realms balance changes

Riot has also added some balance changes to the Revival: Uncharted Realms mode.
Traits
Riot has buffed some of the mode’s traits, particularly Dragonmancer.
Dragonmancer Health: 275/575/800/1600 >>> 325/625/875/1700
Dragonmancer AP: 25/40/55/140 >>> 30/45/60/145
Darkflight Health: 600/900/1500/2250 >>> 750/1050/1650/2400
Guardian %HP Shield: 30/45/90/140 >>> 35/50/100/150%
Cannoneer Proc Damage: 150/300/500 >>> 175/350/575% Base AD
Units
There are also some Uncharted Realms unit updates, especially for Gnar who was dominating the mode.
Gnar Attack Damage % Bonus: 95/105/115 >>> 95/100/100
Gnar Armour on cast: 40/60/90 >>> 40/60/80
Kaisa Damage per projectile: 45/65/100 >>> 50/75/115
Nunu Damage: 450/675/1080 >>> 500/750/1200
Volibear Health gain on cast: 400/700/1100 >>> 500/800/1200
Volibear 3rd attack bonus damage: 80/120/220 >>> 100/140/240
Xayah AD Damage per feather: 12/17/40 >>> 13/19/43
Bug Fixes
Deadlier upgrades: When upgraded through Masterwork Upgrade, Deathblades and Rabadon’s Deathcaps now retain their bonuses from Deadlier Blades and Deadlier Caps.
Uncharted Realms: Fixed a bug where the last 300g cashout was almost always the Dragons instead of 10 Shimmerscale.
Uncharted Realms: Fixed a bug where Draven’s Axe was showing the wrong amount of gold generated.
Uncharted Realms: Fixed a bug where Cooking Pot gave HP to Jade Krugs.
Base Jhin Unbound no longer triggers emote2 in the wrong direction.
Tearoom of Tranquility no longer spawns teapot in the middle of the arena when reconnecting to game.
Jack Stewart, Senior Editor
In my seven years of esports writing, I've introduced esports coverage to newspapers, interviewed some of the biggest names in the industry, and driven viewers mad with the puns in my YouTube scripts. I'm most proud of the latter.
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