What is qss in league

Last updated: April 1, 2026

Quick Answer: QSS is Quick Silver Sash, a defensive item in League of Legends that removes crowd control effects and increases movement speed when activated, providing crucial protection against disabling abilities.

Key Facts

What is QSS in League of Legends

QSS, or Quick Silver Sash, is one of the most important defensive items in League of Legends. It serves as a purifying item that cleanses crowd control effects—commonly referred to as 'CC'—from affected champions. In the fast-paced environment of competitive League of Legends, being trapped by stuns, snares, or other disabling effects can mean the difference between winning and losing teamfights. QSS provides immediate relief from these situations, making it an essential purchase for many champions.

How QSS Works

When activated, QSS's 'Quicksilver' active ability immediately removes all crowd control effects currently affecting the champion and grants a temporary movement speed boost of 60% for 1 second. This cleanse effect works against virtually all disabling abilities including stuns, slows, fears, silences, taunts, and charm effects. The item's cooldown of 40 seconds means players can use it strategically multiple times during extended teamfights or during important rotations around the map.

Strategic Importance

In League of Legends ranked play, understanding when and how to build QSS is crucial for success. Champions that rely on mobility or sustained damage—such as attack damage carries (ADCs) and mid-lane champions—frequently purchase QSS when facing heavy crowd control teams. Proper itemization with QSS can completely shift the power dynamic of a match, allowing vulnerable champions to survive ganks and teamfights that would otherwise prove fatal.

QSS Build Paths and Upgrades

QSS can be upgraded into two different items depending on team composition and champion needs. Maw of Malmortius adds magic damage resistance and a spell shield, providing additional protection against magical crowd control and burst damage. Silvermere Dawn, a newer upgrade path, provides healing and additional crowd control resistance. Players must decide which upgrade best suits their champion and the enemy team composition.

Counter Play and Limitations

While QSS is powerful, it has limitations opponents can exploit. The 40-second cooldown means champions vulnerable to crowd control between uses. Additionally, some effects like Zhonya's Hourglass stun or certain ultimate abilities cannot be cleansed by QSS. Professional and high-level players carefully track QSS cooldowns, timing their crowd control abilities after enemies have used their cleanse to maximize effectiveness.

Related Questions

When should I build QSS in League of Legends?

Build QSS when facing multiple crowd control threats, especially as an ADC or mobile carry. If enemy champions include Blitzcrank, Leona, or Malzahar with significant crowd control, QSS becomes a priority purchase for survivability.

What is the difference between QSS and Mikael's Blessing?

QSS cleanses the user when activated, while Mikael's Blessing is a support item that can purify allies. Both remove crowd control, but QSS provides movement speed boost while Mikael's grants healing instead.

Can QSS be used while stunned or silenced?

Yes, QSS can be activated while stunned or silenced because it's an active ability that triggers immediately. This makes it invaluable against crowd control—you can cleanse stuns and silences that would otherwise prevent ability usage.

Sources

  1. League of Legends Wiki - Quick Silver Sash CC-BY-SA-3.0
  2. Wikipedia - League of Legends CC-BY-SA-4.0