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Slow resist (or Slow resistance) is a stat that unlike tenacity, which reduces the duration of crowd control effects (including slows), reduces the strength of and self-. Slow resist can be obtained through champion abilities, items, and runes, and stacks additively.

Unlike tenacity, slow resist also applies to already active slows.

## Increasing Slow Resist

### Items

• : Passive: Unique – Slow Resist: Reduces the effectiveness of by 25%.

### Champion abilities

• grants him 40% slow resist while active.

## Slow Immunity

Slow immunity is different from 100% slow resist as it will remove any or as they are applied.

### Champion abilities

• grants him slow immunity for the duration.
• grants him slow immunity for the duration.
• grants her slow immunity before and a few seconds after taking damage from enemy champions.
• grants him slow immunity for the duration.

### Items

• : Active: Unique: Instantly removes all , , , , , and on an allied champion, as well as granting 2 seconds of slow immunity. Successfully cleansing an effect will also grant the target 40% bonus movement speed for 2 seconds (120 second cooldown).

## Formulas

These formulas can calculate how much slow resist you have, based on your movement speed and on the slow applied to you.

• Slow Resist is the amount of slow resist you currently have.
• BaseMS is your base movement speed.
• BonusMS is the sum of all additive flat movement speed bonuses.
• MS Multiplier is the sum of all additive percent movement speed bonuses.
• Slow is the strongest slow currently applied on your champion.
• Slow Resist, MS Multiplier, and Slow are percentages (e.g. 50% is 0.5 in the formula).

Formula one:

$\pagecolor{black}\color{White} Movement\ Speed \leq 220:$ $\pagecolor{black}\color{White} Slow Resist = 1 - ({{1 - {{FinalMS - 110} \over {(BaseMS + BonusMS) \times (1 + MS Multiplier) \times 0.5}}}) \div {Slow}}$

Formula two:

$\pagecolor{black}\color{White} 220 \leq Movement\ Speed \leq 415:$ $\pagecolor{black}\color{White} Slow Resist = 1 - ({{1 - {{FinalMS} \over {(BaseMS + BonusMS) \times (1 + MS Multiplier)}}}) \div {Slow}}$

Formula three:

$\pagecolor{black}\color{White} 415 \leq Movement\ Speed \leq 490:$ $\pagecolor{black}\color{White} Slow Resist = 1 - ({{1 - {{{{FinalMS - 475} \over {0.5}} + 490} \over {(BaseMS + BonusMS) \times (1 + MS Multiplier)}}}) \div {Slow}}$

Formula four:

$\pagecolor{black}\color{White} Movement\ Speed \geq 490:$ $\pagecolor{black}\color{White} Slow Resist = 1 - ({{1 - {{{{FinalMS - 415} \over {0.8}} + 415} \over {(BaseMS + BonusMS) \times (1 + MS Multiplier)}}}) \div {Slow}}$

## Trivia

• Example of slow resist effect: A champion with , a movement speed of 400 and who is affected by a 40% slow will have a movement speed of 400 × (1 − (0.4 × 0.75)) = 280, which is equal to a 30% slow without slow resist.

Last updated: December 6, 2017, patch V7.24

• The biggest amount of slow resist obtainable is 155% with .
+ + + = 155%
• With this amount of slow resist, slows will no longer slow you. They will however increase your movement speed by (slow% × 55)%, stacking multiplicatively with bonus.
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