Celerity is a rune in 
League of Legends.
League of Legends.
Notes[]
- Bonus movement speed in general is split into flat, additive percent and multiplicative percent bonuses that construct the value of the total movement speed in stat updates every 0.25 seconds:
- Celerity grants flat bonus movement speed equal to 7% of your other flat bonuses.
- Celerity grants additive bonus movement speed equal to 7% of your other additive bonuses, including itself, only if your total additive bonus from other sources is greater than 5% (6% if including Celerity's bonus).(bug)
- Celerity grants multiplicative bonus movement speed equal to 7% of the sum of your other multiplicative bonuses.(bug)
- On every new stat update, the multiplicative bonus of Celerity will avoid multiplying itself from the previous cycle. However, since stat updates already actively avoid that, the multiplicative bonus will be much lower than it should be on some cycles and oscillate.(bug)
Patch History[]
- Bonus movement speed effectiveness reduced to 7% from 10%.
- New Effect: Now additionally grants 1% bonus movement speed.
- Bug Fix: Now properly increases bonus movement speed from Time Warp Tonic.
- Bonus movement speed effectiveness increased to 10% from 8%.
- New Effect: Movement speed bonuses are 8% more effective on you. For example, a 50% bonus is increased to 54%.
- Old Effect: Gain 1.5% bonus movement speed. Additionally, you gain bonus Attack Damage or Ability Power (Adaptive) based on your bonus movement speed. Grants (6% bonus MS) Attack Damage or (10% bonus MS) Ability Power.
- Bonus movement speed convertion into AP reduced to 10% from 16%.
- Bonus movement speed convertion into AD reduced to 6% from 9.6%.
- Bonus movement speed reduced to 1.5% from 3%.
- Bonus movement speed convertion into AP increased to 16% from 8%.
- Bonus movement speed convertion into AD increased to 9.6% from 4.8%.
- Bonus movement speed reduced to 3% from 4%.
- V7.22 Added
- Sorcery Slot 2 rune.
- Passive: Gain 4% bonus movement speed.
- Additionally, you gain bonus Ability Power or Attack Damage (Adaptive) equal to your bonus movement speed (8% in Ability Power or 4.8% in Attack Damage).
- Adaptive: Grants bonuses based on which stat you already have the most bonuses for. Defaults to the first listed.
References
 Precision
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 Domination
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 Sorcery
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 Resolve
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 Inspiration
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 Removed
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