How Does Disarm Work in Riftbound? Timing, Stacking and Ahri Explained

How does Disarm work in Riftbound? Disarm is an attack trigger. The first time a unit with Disarm attacks in a combat, you give one enemy unit at that battlefield -1 Might for the rest of the turn. Disarm 2 gives -2. It does nothing when your unit defends, and it fires once per combat, not once per swing. If one unit picks up Disarm from several sources, those values add up into one bigger trigger. Two separate Disarm units each trigger on their own, and that difference is exactly what makes Ahri, Confident so good.

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Riftbound Disarm at a Glance

Disarm arrived with Radiance, the fifth Riftbound set. Here is every rule you need, in one place, so you can check it mid-game without reading the whole page.

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When Does Disarm Trigger?

This is where most of the confusion sits, so here are the three timing questions answered one at a time.

Only when you attack

Riot’s patch notes describe Disarm as an attack trigger, and that is the whole story. A Disarm unit that is defending does nothing with the keyword. It looks like a general combat keyword, so it is easy to leave a Disarm unit back on defence expecting it to shrink whatever attacks it. It won’t.

The easiest way to remember it: Disarm is the mirror image of Assault. Assault makes your attacker bigger. Disarm makes one of the defenders smaller. Both only do anything when you are the one attacking.

Once per combat, not once per attack

The official wording is “the first time a unit with Disarm attacks each combat.” So within a single combat, your unit triggers Disarm once and that is it. If that same unit ends up attacking in a different combat later in the turn, that is a new combat, and its Disarm can trigger again. If you need a refresher on what counts as a combat, the combat guide walks through it.

The -Might lasts for this turn only

Disarm is not a permanent shrink. The enemy unit loses Might for the rest of the current turn, then it is back to full size. That still matters a lot, because Might is what decides who wins the fight right now. Lower Might on the defender means it deals less and survives less. The How Damage Works guide explains why a single point of Might can flip a combat.

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How Multiple Disarm Sources Stack

There are two different stacking situations, and they work differently. Getting these mixed up is the most likely rules mistake with Disarm.

Several Disarm keywords on one unit: one trigger, added together

Riot says Disarm stacks the same way Assault and Shield do. If a single unit has gained Disarm from more than one source, it gets one Disarm trigger with the total of all its Disarm values. A unit with printed Disarm that also gains Disarm from another card has one Disarm 2 trigger, not two separate Disarm 1 triggers. One enemy unit gets -2 Might.

Two different Disarm units: two separate triggers

The combining rule is about one unit holding several Disarm keywords. It does not merge different units together. If two of your units with Disarm attack at the same battlefield, each one has its own Disarm trigger. Each trigger picks an enemy unit. You can point both at the same enemy for -2 total, or split them across two enemies for -1 each.

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How Disarm Works With Ahri, Confident

Ahri, Confident is the neatest way to see Disarm in action, because she has the keyword and a payoff for it on the same card. She attacks, Disarm shrinks an enemy, and her second ability notices the shrink and makes her bigger.

Does Disarm count as reducing Might?

Yes. Riot’s patch notes define reducing a unit’s Might as an ability of something you control giving a unit a -Might effect. Disarm does exactly that, so it triggers Ahri. The rules also confirm that any spell, triggered ability, or activated ability you control that applies a non-zero -Might to a unit will trigger her too. The detail I found most useful here is the word “here” on her card: the reduced enemy has to be at Ahri’s battlefield.

Worked example: Ahri attacks on her own

Ahri, Confident attacks a battlefield where your opponent has a 3 Might defender.

1. Ahri attacks, so her Disarm triggers. You give the defender -1 Might. It is now a 2 Might unit this turn.
2. You just reduced an enemy unit’s Might by 1 at Ahri’s battlefield, so her second ability triggers. Ahri gets +1 Might this turn.
3. The fight now runs with the defender 1 smaller and Ahri 1 bigger. That is a 2 point swing from one card, before you have spent anything extra.

Worked example: Ahri plus another Disarm unit

Now Ahri attacks alongside a second unit with Disarm at the same battlefield. Because they are two different units, there are two separate Disarm triggers. Each one is its own reduction of an enemy unit’s Might, so Ahri’s ability triggers for each, and she gets +1 Might twice. This is where the stacking rule pays off.

Compare that with a single unit that has Disarm 2 because it gained Disarm from two sources. That is one trigger and one reduction of 2. Ahri’s ability checks for a reduction “by 1 or more,” so a reduction of 2 still only counts once, and she gets +1, not +2. If you are building around Ahri, more Disarm units at her battlefield beat a bigger Disarm number on one unit.

An edge case: Discipline and Leona, Zealot

Riot’s patch notes include one unusual ruling worth knowing. Leona, Zealot applies a -Might effect to stunned enemy units at her battlefield, but a stunned 1 Might unit near her is effectively getting -0, which does not trigger Ahri. If you play Discipline on that unit, its Might goes up, so Leona’s effect now actually takes Might away from it. Riot rules that this change counts as a new Might reduction, and Ahri, Confident triggers. It only works in that specific case. If the stunned unit was already big enough to be losing Might to Leona, Discipline does not create a new reduction and Ahri does not trigger.

For the full picture of how she plays, read the Ahri Champion Deck and Collector Guide.

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How to Read a Disarm Card Mid-Game

When a Disarm unit hits the table, run through these five checks in order. They cover every rule above.

Step 1: Check that the unit is attacking

If it is defending, Disarm does nothing. Stop here.

Step 2: Check whether it already triggered this combat

Disarm fires the first time the unit attacks each combat. If it has already gone off in this combat, it will not go off again.

Step 3: Add up every Disarm on that one unit

Printed Disarm plus any Disarm granted by other cards becomes one trigger with the total value. Do this separately for each attacking unit with Disarm.

Step 4: Pick an enemy unit at that battlefield

Each trigger gives one enemy unit at the attacker’s battlefield -Might equal to its Disarm value.

Step 5: Look for payoffs, then remember it wears off

Check whether anything like Ahri, Confident triggers on the reduction. Then remember the -Might lasts this turn only.

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If Ahri, Confident’s 2 point combat swing is the kind of play you want to be making, she is the card to pick up first. A single is a much cheaper way to try a Disarm plan than chasing her in packs.

Final Verdict

If your question was how does Disarm work in Riftbound, here is the version to keep in your head: it triggers when you attack, once per combat, shrinks one enemy at that battlefield for this turn, and stacks per unit. You now know more about Disarm timing than most players at their first Radiance game. Put a Disarm unit on the attack with confidence, keep it off defensive duty, and if you are playing Ahri, Confident, send more Disarm units to her battlefield rather than stacking one big Disarm. That is the whole keyword.

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OTHER READING

• How to Start Playing Riftbound: Complete Beginner Hub
• Riftbound Keyword Index A to Z
• Vendetta Booster Display Buying Guide