The micro patch 15.1b for League of Legends introduced significant changes in champion balance, system mechanics, and, importantly, nerfs to the new upgraded boots and one of the new mechanics.
Summoner's Rift
System nerfs in patch 15.1b weakened several key game mechanics and items, including various types of boots that significantly affected match outcomes.
Nerfs | Changes |
Armored Advance | Shield Amount: 10-140 (based on level) + 4% max health ⇒ 10- 120 (based on level) + 4% max health; Shield Cooldown: 12 ⇒ 15 seconds |
Bloody Roses | Bloody Rose Spawn Rate from Gloom (Champion Deaths): Slightly reduced; Bloody Rose Spawn Rate from Atakhan's Pit: Slightly reduced |
Chainlaced Crushers | Shield Amount: 10-140 (based on level) + 4% max health ⇒ 10- 120 (based on level) + 4% max health; Shield Cooldown: 12 ⇒ 15 seconds |
Spellslinger's Shoes | Magic Penetration: 19 ⇒ 18; Percentage Magic Penetration: 10% ⇒ 8% |
Triumphant Sorcerer's Shoes | Bonus Magic Penetration: 4 ⇒ 2; Total Magic Penetration: 16 ⇒ 14 |
Swiftmarch | Movement Speed: 75 ⇒ 70 |
Swiftplay
Adjustments also impacted the Swiftplay mode, where some game elements and champion balance were revised.
Champion Changes
Nerfs | Changes |
Seraphine | Health Growth: 90 ⇒ 95; E Damage: 70-190 (+ 50% AP) ⇒ 70-210 (+ 60% AP) |
Vex | Passive Damage: 40-150 (+ 25% AP) ⇒ 40-150 (+ 40% AP); W Damage: 80-240 (+ 30% AP) ⇒ 80-240 (+ 50% AP) |
Ziggs | Q Damage: 85/135/185/235/285 (+ 65% AP) ⇒ 85/135/185/235/285 (+ 75% AP); W Cooldown: 20/18/16/14/12 ⇒ 18/16/14/12/10 seconds |
Jarvan IV | Armor Growth: 5.2 ⇒ 4.7; Q Damage: 80/120/160/200/240 (+ 140% bonus AD) ⇒ 70/110/150/190/230 (+ 140% bonus AD) |
Kayle | Attack Speed Growth: 1.5% ⇒ 1%; Attack Damage Growth: 2.5 ⇒ 2; W Movement Speed: 24-40% (+ 8% AP) ⇒ 24-32% (+ 8% AP) |
Viktor | Health Growth: 100 ⇒ 92; R Damage per Tick: 65/105/145 (+ 45% AP) ⇒ 60/100/140 (+ 40% AP) |
Atakhan | Adjusted the thresholds required for Atakhan's Ruinous form to spawn in Swiftplay so that he should now appear more often. |
Boot Nerfs and Their Impact on the Meta
The analytics portal DPM.LOL conducted a statistical analysis, revealing that the win rate of teams on the blue side using boots with "Triumph of Power" reached 71.4%, significantly exceeding the 69.9% of teams on the red side.
Feats of Stength ⚡️
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These imbalances necessitated changes in patch 15.1b. After the update 25.S1.1, the boots were too powerful, leading developers to decide to reduce their effectiveness. The nerf started in patch 15.1b, with further reductions planned in the next update to improve balance and increase strategy diversity.
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