Keyword Actions in MTG: Full List, Rules, and FAQs

Pedro Furtado (djorso) 8 days ago MTG Cards, MTG Rules

Last updated on October 3, 2026

Phalanx Tactics | Illustration by Bayard Wu

Magic: The Gathering is one of the most complex games ever, and new cards are released every two months or so that bring with them new rules and interactions. Human beings like to simplify things, and we tend to create terms that have a bigger meaning.

There’s the expression that says: “A picture is worth a thousand words,” and in MTG we can say that a keyword is worth a dozen words in card text. Keyword actions are an integral part of the game, and the more familiar you are with them, the easier it is to understand what a card does and its rules interactions.

Today you’re going to learn all things related to keyword actions, and how they differ from other terms like triggered abilities or keyword abilities.

Let’s go!

Table of Contents show

What Are Keyword Actions in MTG?

Ty Lee, Artful Acrobat | Illustration by Rose Benjamin

A keyword action is a term that replaces a bunch of MTG rules and serves as a reminder of a certain game action. It’s usually a verb because verbs are synonyms with actions. For example, instead of using “target player puts the top three cards of their library into their graveyard,” you can use the keyword action mill instead and shorten all this text to “target player mills three cards.” Once you know what mill does, it’s very easy to understand.

There are dozens of keyword actions in MTG, and most of them are common terms like fight, cast, discard, or destroy. Some keyword actions are exclusive to supplemental products like open an attraction, planeswalk, and abandon. There are even mechanics that influence the overall design of a given set, like celebration from Wilds of Eldraine or connive from Streets of New Capenna, both of which are keyword actions.

Are Keyword Actions Activated Abilities?

A keyword action can happen as part of an activated or triggered ability, though the action itself is usually just an effect, or part of an effect that happens upon resolution.

As an example, populate is a keyword action that can be used as part of an activated ability (Vitu-Ghazi Guildmage) or a triggered ability (Nesting Dovehawk). Populate itself is just the action you take when those abilities resolve.

Keyword Actions vs. Triggered Abilities

Keyword actions and triggered abilities are different things, but they can sometimes be combined on the same card. Triggered abilities are always indicated by the terms whenever, when, and at. A card that says “At the beginning of your upkeep, mill two cards” combines a triggered ability that happens at the beginning of each upkeep with a keyword action (mill).

Keyword Actions vs. Keyword Abilities

Keyword abilities are abilities the card has, such as flying, haste, and deathtouch on creatures. Sorceries and instants also have abilities like flashback and splice. The main difference between keyword actions and keyword abilities is that a keyword ability is integral to the card at all times, while the keyword action only happens at a given time.

Keyword abilities also need rules text to explain what the ability does. Keywords like constellation, metalcraft, and threshold have some sort of consistent text about what makes them work, but a card can’t simply use those abilities and not explain what its individual effect is. Keyword actions like investigate or bolster have the same effect across all cards, so they can be shortened to just the keyword.

Eerie from Duskmourn: House of Horror is another example of a keyword ability. A card like Entity Tracker has eerie, but simply saying “this card has eerie” doesn’t tell you what the card’s effect is. You know that it shares the trigger condition of other eerie cards, but the output is different from one eerie card to the next.

Can You Respond to Keyword Actions?

Keyword actions typically don’t use the stack, and are instead actions you take once a spell or ability resolves. If you want to interact with the keyword action, you need to interact with the spell or ability that produces that keyword action before it resolves.

For example, if a Thrummingbird deals combat damage, its triggered ability to proliferate goes on the stack. If it resolves, the keyword action of proliferating happens as part of the ability and can’t be responded to. However, you can interact with the Thrummingbird itself before it deals damage, or interact with the triggered ability when it goes on the stack. At no point do you interact with the keyword action of proliferating.

Keyword actions can also be used as costs, as seen with abilities like collect evidence or waterbend. If these actions are taken as part of paying a cost, you can’t interact with the action itself, but you can interact with the resulting spell or ability that goes on the stack. For example, you can use a Tormod's Crypt on someone’s graveyard as a response to them collecting evidence as a cost for casting Deadly Cover-Up.

Can Keyword Actions be Countered or Stifled?

Counterspells and stifle effects can only interact with spells or abilities on the stack, and keyword actions themselves rarely use the stack. You can counter the spells or abilities that would result in a keyword action happening, but not the keyword action itself.

For example, if someone waterbends to activate the ability on Aang's Iceberg, there’s an activated ability that goes on the stack. That ability can be stifled, but in that case, you’re just countering an ability, not the keyword action of waterbending.

List of Keyword Actions

Wrap Up

Samut's Sprint | Illustration by Aleksi Briclot

Keyword actions are much needed in MTG, and they bring rules clarity and design elegance. Together with keyword abilities and other game mechanics, they make sure that all players have the same vocabulary and speak the same game language, so it’s clear to all parties what actions players are taking.

Were these terms replaced by their real meaning in rules text, the text boxes would be huge, as we see on a lot of old MTG designs. Just look at the original design for cards like The Hive or Priest of Yawgmoth.

I hope you’ve learned a thing or two about keyword actions, and if you’re still confused about anything, just let me know in the comments below or find us over in the Draftsim Discord. And check out The Daily Upkeep newsletter to stay up to date on all the latest MTG news.

Stay safe folks, and game on!

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Pedro Furtado (djorso)

Pedro started playing Magic way back when in Fourth Edition. After a long hiatus, he now plays mostly MTG Arena Standard and Limited. His biggest MTG regret is trading a bunch of Force of Wills for Serra Angels.