Stormrazor

Legendary

3,200 g

Patch

Summoner's Rift ARAM Arena Nexus Blitz URF One for All Swiftplay Ultimate Spellbook

No Ultimate Spellbook-specific changes; identical to the Summoner's Rift version.

Effects

Unique Passive · Energized

Moving and basic attacking generates Energize stacks, up to 100.

Unique Passive · Bolt

When fully Energized, your next basic attack deals 100 bonus magic damage on-hit and grants you 45% bonus movement speed for 1.5 seconds.

Stats

+50Attack Damage
+25%Attack Speed
+25%Critical Strike Chance

Available in

Summoner's Rift · URF · One for All · Swiftplay · Ultimate Spellbook · ARAM · Nexus Blitz · Arena

Patch history

26.17· Aug 26, 2026Buffed

Attack speed increased to 25% from 20%.Buff

26.11· May 28, 2026Buffed

Bug Fix: Fixed a bug where it wouldn't trigger from ability damage until it was triggered by an attack at least once.Buff

26.1· Jan 8, 2026Buffed

Re-added to Summoner's Rift.Buff
Recipe: B. F. Sword + Cloak of Agility + Scout's Slingshot + 700 = 3200.Adj.
Stats: 50 attack damage, 20% attack speed, 25% critical strike chance.Buff
Unique Passive - Energized: Moving and basic attacking generates Energize stacks, up to 100.Buff
Unique Passive - Bolt: When fully Energized, your next basic attack deals 100 bonus magic damage on-hit and grants you 45% bonus movement speed for 1.5 seconds.Buff
Limited to 1 Stormrazor.

25.13· Jun 25, 2025

Available on Arena.

25.10· May 14, 2025

Removed from the game on May 14th, 2025 since Arena is no longer available.

25 older patches

25.5

Available on Arena.
Bolt damage reduced to 100 from 200.
Bolt bonus movement speed reduced to 45% from 50%.

14.19

Removed from the game on September 24th, 2024 since Arena is no longer available.

14.16

Bug Fix: Bolt's damage is now correctly tagged as item damage for the purposes of effects such as the Vulnerability augment.

14.10

Removed from Summoner's Rift and Howling Abyss.

Recipe

+

+700 g = 3,200 g

Critical strike chance increased to 25% from 20%.

14.3

Bolt base damage increased to 100 from 90.
Removed: Bolt damage no longer scales with 25% AD.
Bolt bonus movement speed duration increased to 1.5 seconds from 1.

14.1

Total cost increased to 3100 from 3000.
Combine cost increased to 500 from 400.
Attack damage increased to 60 from 55.
New Living Forge item: Eye of the Storm.
Stats: 80 attack damage, 25% attack speed, 20% critical strike chance.

13.20

Bug Fix: Spirit's Refuge now properly blocks the on-hit damage of Bolt.

13.18

Attack damage increased to 55 from 50.

13.13

Base damage increased to 90 from 15.
AD ratio reduced to 25% AD from 60% AD.
Removed: No longer scales with 50% AP.

13.11

Attack damage reduced to 50 from 55.
Base damage reduced to 15 from 25.
AD ratio reduced to 60% AD from 65% AD.

13.10

New Recipe: Noonquiver + Cloak of Agility + Kircheis Shard + 400 = 3000.
Old Recipe: B. F. Sword + Cloak of Agility + Kircheis Shard + 100 = 2700.
Attack damage increased to 55 from 45.
New Unique Passive - Bolt: When fully Energized, your next basic attack deals 25 (+ 65% AD) (+ 50% AP) bonus magic damage and grants 45% bonus movement speed for 1 second.
Removed Unique Passive - Paralyze: When fully Energized, your next basic attack deals 120 bonus magic damage on-hit. Energized effects slow by 75% for 0.5 seconds.

12.23

Attack damage increased to 45 from 40.

11.23

New Effect: Tooltip now tracks champions slowed by Paralyze.

10.23

New:
Recipe: B. F. Sword + Cloak of Agility + Kircheis Shard + 100 = 2700.
Stats: 40 attack damage, 15% attack speed, 20% critical strike chance.
Unique Passive - Energized: Moving and basic attacking generates Energize stacks, up to 100.
Unique Passive - Paralyze: When fully Energized, your next basic attack deals 120 bonus magic damage on-hit. Energized effects slow by 75% for 0.5 seconds.
Limited to 1 Stormrazor.
Old:
Recipe: B. F. Sword + Cloak of Agility + Kircheis Shard + 400 = 3200.
Stats: 50 attack damage, 15% attack speed, 25% critical strike chance.
Unique Passive - Energized: Moving and basic attacking generates Energize stacks, up to 100.
Unique Passive - Paralyze: When fully Energized, your next basic attack deals 120 bonus magic damage on-hit. Energized effects slow by 75% for 0.5 seconds.

10.2

Attack damage reduced to 50 from 55.
Bug Fix: Energized VFX no longer can be seen within Fog of War.

9.23

New Recipe: B. F. Sword + Cloak of Agility + Kircheis Shard + 400 = 3200.
Old Recipe: B. F. Sword + Long Sword + Kircheis Shard + 850 = 3100.
Energized stacks per attack reduced to 6 from 12.
Energized stacks per movement increased to (1 for every 25 units) from (1 for every 30 units).
New Effect: Energized effects now also work on structures.
Attack damage reduced to 55 from 60.
Critical strike chance increased to 25% from 0%.
Attack speed reduced to 15% from 30%.
Energized damage increased to 120 from 50.
Removed: No longer increases Energized effects by 35%.
New Effect: Damage from other Energized effects now stacks.
Slow strength increased to 75% from 40%.
Slow duration reduced to 0.5 seconds from 1.5.
Removed: Slow no longer decays over the duration.
Unique Energized bonus magic damage and slow is now named Paralyze.
Unique Passive - Energized: Moving and basic attacking generates Energize stacks, up to 100.
Unique Passive - Paralyze: When fully Energized, your next basic attack deals 120 bonus magic damage on-hit. Energized effects slow by 75% for 0.5 seconds.
Previous Passive - Energized: Moving and basic attacking generates Energize stacks, up to 100. When fully Energized, your next basic attack deals 50 bonus magic damage on-hit.
Previous Passive: Energized effects have all of their respective effects increased by 35% and also slow for 40% decaying over 1.5 seconds.

9.8

Energized amplification increased to 35% from 30%.
Slow decay duration increased to 1.5 seconds from 1.

9.5

Attack damage increased to 60 from 55.
Attack speed increased to 30% from 25%.

9.4

Three passive effects (unnamed 1 and Storm, and unnamed 2) changed to Energized and a unique passive.
Unique Passive - Energized: Moving and attacking will make an attack Energized. Your Energized attacks deal 50 bonus magic damage on hit.
Unique Passive: Energized effects have all of their respective effects increased by 30% and also slow for 40% decaying over 1 second.

9.3

New Recipe: B. F. Sword + Long Sword + Kircheis Shard + 850 = 3100.
Old Recipe: B. F. Sword + Long Sword + Long Sword + Dagger + 500 = 2800.
New Stats:
55 attack damage, 25% attack speed.
Passive: Moving and attacking generates Energize stacks, up to 100. When fully Energized, your next basic attack gains Storm.
Unique Passive - Storm: Your next basic attack deals 50 bonus magic damage on-hit.
Unique Passive: Your Energized effects have all of their respective effects increased by 30% and also slow for 40% decaying over 1 second.
Effects known to be increased so far:
All Energized attacks damage (including Stormrazor's).
Rapid Firecannon's bonus range and bonus range cap
Statikk Shiv's number of bounces (increases to 7 bounces).
Each Statikk Shiv's bounces applies the slow.
Fleet Footwork heal and movement speed.
Does not affect the bonus charge generation from Rapid Firecannon.
Old Stats:
60 attack damage, 35% attack speed.
Unique Passive: If you haven't cast your basic attack for 300/(100+25*(x-1));...;0 seconds, gain Storm's Edge.
Unique Passive - Storm's Edge: Your next basic attack critically strikes for 140;160 to 200 damage and grants 20% bonus movement speed for 0.75 seconds.

8.17

Storm's Edge base damage reduced to 140% from 160%.
Storm's Edge increased damage percent reduced to 0.5% critical strike chance from 0.75%.
Formula changed to 140%;150%;160%;170%;180%;190%;200% from 160%;166.67%;173.33%;180%;186.67%;193.33%;200%.
Attack speed increased to 35% from 25%.
Attack damage reduced to 60 from 65.

8.15

New Recipe: B. F. Sword + Long Sword + Long Sword + Dagger + 500 = 2800.
Old Recipe: B. F. Sword + Pickaxe + Dagger + Dagger + 425 = 3200.
Attack damage reduced to 65 from 75.
Attack speed reduced to 25% from 30%.
Bug Fix: No longer incorrectly gives movement speed on every crit if the Stormrazor crit activated Conqueror.

8.13

New Recipe: B. F. Sword + Pickaxe + Dagger + Dagger + 425 = 3200.
Old Recipe: B. F. Sword + Pickaxe + Dagger + 725 = 3200.
Increased damage percent reduced to 0.75% critical strike chance from 1.5%. Reaches 200% damage at 30% critical strike chance instead of 60%.
Formula changed to 160%;166.67%;173.33%;180%;186.67%;193.33%;200% from 160%;165%;170%;175%;180%;185%;190%;195%;200%.

8.12

Attack damage increased to 75 from 70.
Storm's Edge bonus movement speed increased to 20% from 10%.
Storm's Edge bonus movement speed duration reduced to 0.75 seconds from 1.75.
Bug Fix: No longer reduces Jhin fourth shot damage from Whisper.
Bug Fix: Now gives the movement speed on guaranteed critical strikes (e.g Bladework, Backstab).

8.11

Recipe: B. F. Sword + Pickaxe + Dagger + 725 = 3200.
Stats: +70 attack damage and +30% attack speed.
Unique Passive: If you haven't basic attacked for 2.31;1.87;1.58;1.36;1.12;1.07;0.97;0.88;0.81;0.75;0.70;0.65;0.61;0.58;0.55;0.52;0.49;...;0.38 seconds, gain Storm's Edge.
Storm's Edge: Your next basic attack critically strikes for 160%;165%;170%;175%;180%;185%;190%;195%;200% damage and grants 10% bonus movement speed for 1.75 seconds.