TFT Patch 13.5: Chemical Baron Rework and the Return of Set 4.5

TFT Patch 13.5: Chemical Baron Rework and the Return of Set 4.5

5. February 2025 by Valentin Pasetti

Teamfight Tactics Patch 13.5 brings significant changes to various units, with the most notable being the complete rework of Chemical Barons. In addition, players can enjoy the return of Set 4.5 in a limited-time event.

This patch highlights Riot Games’ careful approach to maintaining the competitive balance, ensuring the meta remains stable despite the updates.

TFT has evolved into a competitive ecosystem with weekly tournaments and an important ladder race for ranking points, which are crucial for qualifying for regional events and Worlds. While updates are usually light, Patch 13.5 makes impactful changes that refine the gameplay experience without drastically shaking up the meta.

Patch Notes for TFT 13.5

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Systems

Opening Round Adjustments:

  • Caitlyn: Golden Subscription 4% ⇒ 8%
  • Heimerdinger: Prism First 6% ⇒ 8%
  • Mel: Radiant Blessing 8% ⇒ 4%
  • Powder: Rope Monkey 5% ⇒ 8%
  • Sevika: Loot Subscription 4% ⇒ 7%
  • Viktor: Cost 6% ⇒ 5%
  • Warwick: Loot on Kill 8% ⇒ 3%

Augment Adjustments:

  • Augments that require a specific unit level now need more units of the same trait at round 4-2.

Chemist Baron Rework

The Chemical Barons synergy has undergone a complete overhaul, with a major focus on balance adjustments:

  • Chemical Baron (7): Removed.
  • Chemical Baron (3): 15/35, 20 health (no change).
  • Chemical Baron (4): 20/45, 60 health ⇒ 15/45, 60 health.
  • Chemical Baron (5): 20/55, 110 health ⇒ 20/60, 100 health.
  • Chemical Baron (6): 25/70, 160 health ⇒ 20/90, 150 health.
  • Chemical Baron (Double Up): Now features independent shimmer values, reduced by 25-33% from the normal mode. (3): 15/35 ⇒ 10/25, (4): 15/45 ⇒ 10/35, (5): 20/60 ⇒ 15/50, (6): 25/90 ⇒ 20/70.

Other significant changes include:

  • Hextech Armor from Piltover: Activation cooldown reduced to 3s.
  • Unleashed Toxins no longer stuns. Missiles fired: 5 ⇒ 4.
  • True damage from Virulent Virus: 35% ⇒ 25%.

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Other Unit Changes

  • Dominant: Life shield 350/500/700 ⇒ 350/550/800.
  • Agent: Life shield 12/20/30/40 ⇒ 12/22/33/40.
  • Emissary (4): Additional health 200 ⇒ 250.
  • Fighter Pit: Healing value 10/25/40/80% ⇒ 10/25/45/80%.
  • Rebel: Basic health percentage 12% ⇒ 15%.

Unit Adjustments

Cost 1

  • Draven: Axe damage percentage 140/140/140/140% ⇒ 140/140/150/150%.
  • Steb: Ability healing 270/310/360/410 ⇒ 260/290/360/430.

Cost 2

  • Urgot: Ability damage percentage 300/300/333% ⇒ 300/300/310%.
  • Urgot: Secondary damage 150/150/165% ⇒ 150/150/155%.

Cost 3

  • Cassiopeia: Main ability damage 230/345/550 ⇒ 240/360/580.
  • Cassiopeia: Miasma damage 160/240/385 ⇒ 180/270/430.

Cost 4

  • Ambessa: Base damage 65 ⇒ 68.
  • Dr. Mundo: Armor and magic resistance 60 ⇒ 66.
  • Ekko: Ability damage 300/450/1200 ⇒ 285/430/1200.

Cost 5

  • Caitlyn: Base damage 82 ⇒ 80.
  • LeBlanc: Enhanced auto-attack damage 160/240/900 ⇒ 150/225/900.

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Augment Adjustments

  • Irelia (Carry Augment): Sword Dance damage percentage 335/335/345/345% ⇒ 350/350/350/350%.
  • Diversity is Everything: Gold per attribute 1 for 3 ⇒ 2 for 4.
  • Singed (Carry Augment): Skill Lifesteal 20% ⇒ 30%.

Object and Artifact Changes

  • Blue Buff & Nashor’s Tooth can now be equipped to champions without mana.
  • Gold Collector: Gold chance 40% ⇒ 33%.
  • Magnate Mesh: Base health 50 ⇒ 100.

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Set 4.5 Return Event

The return of Set 4.5 brings players a nostalgic experience with updated treasures in the Fortune loot table and balanced champion abilities. It runs until March 10th and is perfect for casual play.

Set 4.5 Attributes Adjustments:

  • Duelist: Attack speed per stack adjusted from 12%/20%/35%/60% ⇒ 10%/15%/25%/35%.
  • Exile (2): Lifesteal adjusted 80% ⇒ 60%.

Champion Adjustments in Set 4.5:

  • Nidalee (3-star): Ability damage 350 ⇒ 270.
  • Tahm Kench: Damage block 15/25/75 ⇒ 12/25/50.
  • Twisted Fate: Ability damage 250/350/475 ⇒ 180/270/400.
  • Annie: Ability damage 250/350/450 ⇒ 180/270/360.

Conclusion

TFT Patch 13.5 brings a fresh update with the rework of Chemical Barons, balance adjustments to units, and exciting new augment options. Set 4.5’s return provides an extra layer of fun, allowing casual players to relive classic mechanics while experiencing balanced changes.

With these updates, Riot Games continues its careful management of TFT’s competitive ecosystem, offering improvements that enhance the strategic depth without disrupting the current meta.

TFT Patch 13.5: Full List of Changes and Updates Coming to Teamfight Tactics