Mordekaiser's Ultimate Can No Longer be Cancelled with QSS?

In 2024, players on the Public Beta Environment (PBE) noticed that Quicksilver Sash (QSS) might no longer cancel Mordekaiser's ultimate, Realm of Death. That interaction matters because Mordekaiser's ultimate removes one enemy champion from the fight, and the ability to end it with an item changes how teams build against him. This article explains what the PBE change was, what the interaction is meant to do, and how to check what applies to the patch you are playing. Because balance changes move quickly and a PBE test is not a release, treat the details below as the state of play when the change was reported and confirm everything in the current patch notes.

Status of This Information

PBE changes are tests. Riot can keep them, change them or remove them before they reach the live game. We could not verify for this update whether the PBE change was released in its tested form or what the current interaction is, so we describe the reported change and give you a way to check it yourself. Before you build an item based on this article, look at the item and ability descriptions in the client for your current patch.

What Mordekaiser's Ultimate Does

Realm of Death (R) pulls an enemy champion into a separate area where only Mordekaiser and that target can fight each other for a limited time. While the target is in the realm, Mordekaiser also takes part of their stats for himself. The champion that is caught cannot receive direct help from allies, and the rest of the team plays without them. Because of this, a good Mordekaiser ultimate on the right target can decide a team fight or end a carry's game.

Exact durations and the portion of stats gained are numbers that Riot changes from patch to patch, so we do not repeat them here. The ability tooltip in the client always shows the current values.

What Quicksilver Sash Is For

Quicksilver Sash is an item with an active effect that removes most crowd control effects from the user for a moment, and gives a short period of protection from some of them. Marksmen and mages often buy it against teams with many stuns, roots or suppression effects. The important part for this topic is that item cleansing and ability rules have exceptions, and Riot sometimes changes what a cleanse can remove. That is why interactions with ultimates like Realm of Death attract so much attention.

What Was Reported on the PBE

Reports at the time said that Riot tested a change so that QSS would no longer end Mordekaiser's ultimate. If a change like that is live, a player caught in Realm of Death would need another solution than the item. The reports also mentioned that a few champion abilities could still free a target. The abilities named were Gangplank's Remove Scurvy, Olaf's Ragnarok and Milio's Breath of Life. These are abilities that clear or ignore crowd control, but whether each one ends the realm in the current game depends on the patch and on how Riot defines the effect, so test the interaction in the Practice Tool if you plan to rely on it.

How to Check the Current Interaction

1. Read the patch notes. Search the recent notes for Mordekaiser and for Quicksilver Sash and Mercurial Scimitar. Riot lists changes to both.
2. Read the tooltips. In the client's champion and item views, the ability and item descriptions describe what they remove or block.
3. Test in a custom game. In a practice game, you can play as Mordekaiser and have another account or a friend test QSS, or use the tool to test abilities that could break the effect.
4. Look at current statistics sites. They show if players are buying the item against Mordekaiser. High purchase rates are a sign that the item still works.

How to Play Against Mordekaiser's Ultimate

Regardless of the item interaction, you can reduce the damage that the ultimate does:

• Know who he will target. Mordekaiser usually aims for the champion who deals the most damage or who is easiest to catch. Stay with your team and avoid being the first to walk into a fight.
• Stay out of reach. His ultimate has a range. Keep your distance, and use walls and teammates to block his approach.
• Make the realm less rewarding. Champions with a strong one-on-one and items that reduce healing or protect against burst do better when caught. Our guide to the best items against Mordekaiser covers the choices.
• Use crowd control and peel on him. Interrupting or stunning him before he casts is the safest answer, so pick up tools that stop him from reaching you.
• Pick teammates who help. If your team has champions who can clear crowd control for allies, you have more options.

How to Play Mordekaiser After a QSS Change

• Use the ultimate on the most dangerous carry, not simply the nearest target.
• Ask yourself whether the enemy team has the abilities that were named in the reports, and whether you should wait until they are used.
• Combine the ultimate with crowd control from your team so that the target has fewer options after you cast.

Our earlier article on the Season 14 Mordekaiser ultimate and QSS interaction has a longer look at the background.

Why Item and Ability Interactions Change

Riot tweaks interactions between items and abilities because they can make a champion either too easy or too hard to play against. A champion who is hard to counter can dominate for a patch; a champion who is too easy to counter loses his role. Changes to cleansing are a common method because they alter the counterplay without changing the champion's damage or health. When you see a change on the PBE, it can show how Riot thinks about a champion, but the live game decides what matters for your ranked games.

Practice and Improvement

Knowing this one interaction is useful, but ranked results depend more on decisions: when you buy the item, whether you stay with your team and whether you can punish a mistake. If you want help with drafting and itemization, our LoL coaching service can review your games, and our LoL ranks guide explains how divisions and promotions work.

Summary

In 2024 the PBE tested a change that would stop QSS from ending Mordekaiser's ultimate. We cannot confirm what the live interaction is today, so check the current patch notes and tooltips before you decide on an item. Whatever the rules are, you can limit the ultimate by staying with your team, stopping Mordekaiser before he casts and building items that suit a one-on-one.