Flash lets you cast a card any time you could cast an instant: on an opponent's turn, in response to a spell, or in the middle of combat. Nothing else changes. It can still be countered, and a creature cast this way still can't attack until it has been yours continuously since your turn began. Mana Grove, a free MTG deck builder for Commander, publishes this guide to the flash keyword and reads every card in it from its own card database.
This guide is part of our MTG keywords and mechanics glossary, the index of every mechanic guide on Mana Grove.
How flash actually works
Instant timing, without becoming an instant
Without flash, a creature, artifact, enchantment, planeswalker or sorcery can be cast only during a main phase of your own turn, when you have priority and the stack is empty (117.1a, 302.1, 307.1). An instant has no such limit: "A player may cast an instant spell any time they have priority" (117.1a). Flash gives a card the instant's timing and leaves everything else alone.
That last part settles most arguments. A creature with flash is not an instant. It does not trigger abilities that look for an instant being cast, a spell that copies "target instant or sorcery spell" cannot copy it, and it becomes a permanent when it resolves, as any creature spell does (608.3a). Dualcaster Mage is a neat example of both halves: it has flash so that it can be cast while another spell is on the stack, and what it copies when it enters is an instant or sorcery, never a creature.
It still uses the stack
A card cast with flash is cast like any other spell. You need priority, you pay its full cost, it goes on the stack, and every player gets a chance to respond before it resolves. It can be countered (701.6a). Flash gives no protection of its own, which is why Hullbreaker Horror needs its own line saying it cannot be countered.
Summoning sickness still applies
Flash is not haste. A creature cannot attack, or use an ability with the tap symbol in its cost, unless you have controlled it continuously since your most recent turn began (302.6). So a creature you cast on your own turn with flash still waits a turn to attack.
Two things follow that make flash stronger than it reads. First, blocking has no such rule: a blocker only needs to be untapped (509.1a), so a creature cast after an opponent declares attackers can block that same combat. Second, a creature cast during the end step of the player before you has been under your control since before your turn began, so it attacks on your turn as if it had haste, and no opponent had a main phase of their own to deal with it first.
Flash on things that are not creatures
Flash appears on artifacts, enchantments and Equipment too. Mithril Coat is the most-played flash card in our Commander data: it enters at instant speed and its own triggered ability attaches it to a legendary creature, which then has indestructible. The official ruling in our card data explains why that works on any turn: "Attaching an Equipment with its enters-the-battlefield triggered ability isn't the same as using its equip ability. You don't pay mana for the attachment, and the timing restrictions for equip abilities don't apply." Equip itself can be activated only as a sorcery (702.6a), so moving the Coat later is back to your own main phase.
The rule, line by line
Rule 702.8a
Flash is a static ability that functions in any zone from which you could play the card it's on. "Flash" means "You may play this card any time you could cast an instant."
Rule 702.8b
Multiple instances of flash on the same object are redundant.
Five pieces of fine print follow from those two lines.
- It works from any zone you could cast the card from. That is the first sentence of 702.8a. A commander with flash can be cast from the command zone at instant speed, with the commander tax as usual (903.8). The ruling on Yeva, Nature's Herald says her second ability "applies to green creature cards in any zone, provided something is allowing you to cast them."
- It is permission, and a restriction beats a permission. "When a rule or effect allows or directs something to happen, and another effect states that it can't happen, the 'can't' effect takes precedence" (101.2). An opponent's Teferi, Time Raveler says "Each opponent can cast spells only any time they could cast a sorcery", and flash does not get round that.
- It does nothing after the card resolves. A permanent with flash is an ordinary permanent. Nothing about it expires at end of turn.
- It applies to casting, not to playing lands. Playing a land is a special action that does not use the stack, taken only during a main phase of your own turn (305.1). Effects that say "you may cast spells as though they had flash" do not move your land drop.
- Two instances are redundant (702.8b). A creature with flash under Vedalken Orrery gains nothing extra.
Flash vs instants and sorceries
| Instant | Card with flash | Sorcery, or a permanent card without flash | |
|---|---|---|---|
| When it can be cast | Any time you have priority (117.1a) | Any time you have priority (702.8a) | Your main phase, with priority and an empty stack (117.1a, 307.1) |
| Card type on the stack | Instant | Its own type: creature, artifact, enchantment | Its own type |
| After it resolves | Goes to the graveyard | Stays on the battlefield as a permanent | A sorcery goes to the graveyard, a permanent stays |
| Counts as an instant for other cards | Yes | No | No |
| Can be countered | Yes | Yes | Yes |
Flash is also not flashback. Flashback is a different keyword that lets an instant or sorcery be cast from a graveyard (702.34a). Snapcaster Mage happens to use both words: it has flash, and when it enters it gives an instant or sorcery card in your graveyard flashback until end of turn.
What flash does not do
- It does not make the card an instant. The card keeps its own types.
- It does not give haste. Summoning sickness applies as usual (302.6).
- It does not skip the stack. The spell can be responded to and countered (701.6a).
- It does not reduce the cost. You pay the full mana cost, and the commander tax if it is your commander (903.8).
- It does not let you cast spells when you have no priority. No player receives priority during the untap step (502.4), and normally none does during the cleanup step (514.3).
- It does not override "can't". An effect that limits when you can cast spells wins (101.2).
When to cast a flash card
Flash is a timing tool, so the skill is choosing the moment. These are the windows that come up most at a Commander table.
| Window | What you gain | Cards built for it |
|---|---|---|
| The end step of the opponent to your right | Your creature attacks on your turn, and no opponent had a main phase to answer it | Hullbreaker Horror, Jin-Gitaxias, Core Augur |
| In response to removal or a board wipe | The protection resolves first | Mithril Coat, Restoration Angel |
| In response to a tutor or a draw spell | Your creature is on the battlefield before their spell resolves | Opposition Agent, Aven Mindcensor, Notion Thief, Orcish Bowmasters |
| After attackers are declared | A blocker, or a combat trick on a body, that the attacker did not plan for | Embercleave, any creature with flash |
| While another spell is on the stack | An enters ability that needs a spell to point at | Dualcaster Mage |
The quiet advantage is information. A deck full of flash cards passes the turn with its mana untapped and decides what to do after seeing what everyone else did. If nothing needs answering, the mana becomes a creature at the end of the last opponent's turn, and nothing was wasted.
The best flash cards in Commander
Our card database holds 608 Commander-legal cards with flash printed on them (193 blue, 130 white, 74 multicolour, 72 green, 62 black, 42 colourless and 35 red), 413 of them creatures. Another 83 Commander-legal cards name flash in their rules text without having the keyword, most of them because they give it to other spells. These are fifteen of the flash cards Commander players run most, ordered by how often they appear in Commander decks, with the mana cost as printed.
| Card | Cost | Type | Why it wants flash |
|---|---|---|---|
| Mithril Coat | {3} | Legendary Equipment | Enters in response to removal, attaches itself to a legendary creature and makes it indestructible |
| Orcish Bowmasters | {1}{B} | Creature | Deals 1 damage when it enters and each time an opponent draws an extra card, so it is cast in response to a big draw spell |
| Hullbreaker Horror | {5}{U}{U} | Creature | A 7/8 that cannot be countered and returns a spell or a nonland permanent to hand whenever you cast a spell |
| Faerie Mastermind | {1}{U} | Creature | Draws you a card whenever an opponent draws their second card in a turn |
| Opposition Agent | {2}{B} | Creature | Cast in response to a tutor: you control the opponent while they search, and the cards they find are exiled for you to play |
| Dualcaster Mage | {1}{R}{R} | Creature | Copies target instant or sorcery spell when it enters |
| Archivist of Oghma | {1}{W} | Creature | You gain 1 life and draw a card whenever an opponent searches their library |
| Valley Floodcaller | {2}{U} | Creature | Has flash and lets you cast noncreature spells as though they had flash |
| High Fae Trickster | {3}{U} | Creature | A 4/2 flyer that lets you cast every spell as though it had flash |
| Dictate of Erebos | {3}{B}{B} | Enchantment | Each opponent sacrifices a creature whenever one of yours dies. Flash lets it arrive in response to a board wipe |
| Aven Mindcensor | {2}{W} | Creature | Cast in response to a search, it limits that search to the top four cards of the library |
| Notion Thief | {2}{U}{B} | Creature | Opponents' extra draws become yours instead. Cast in response to a draw spell, it takes every extra card of it |
| Embercleave | {4}{R}{R} | Legendary Equipment | Costs {1} less for each attacking creature you control, enters during combat and attaches itself: +1/+1, double strike and trample |
| Restoration Angel | {3}{W} | Creature | Exiles a non-Angel creature you control and returns it, which saves it from a removal spell on the stack |
| Snapcaster Mage | {1}{U} | Creature | Gives an instant or sorcery card in your graveyard flashback until end of turn |
Almost none of these would be worth the slot at sorcery speed. Each has an ability that needs to be in place before something else resolves, and flash is what makes that possible.
The cards that give other spells flash
The second family is the cards that hand flash to the rest of your deck. Ordered the same way, with the cost as printed.
| Card | Cost | What it lets you cast at instant speed |
|---|---|---|
| Emergence Zone | Land | {1}, tap and sacrifice it: every spell you cast this turn |
| Borne Upon a Wind | {1}{U} | Every spell you cast this turn, and it draws a card |
| Leyline of Anticipation | {2}{U}{U} | Every spell, permanently, and it can start the game on the battlefield if it is in your opening hand |
| Sigarda's Aid | {W} | Aura and Equipment spells |
| Alchemist's Refuge | Land | {G}{U} and tap: every spell you cast this turn |
| Teferi, Time Raveler | {1}{W}{U} | His +1 lets you cast sorcery spells as though they had flash until your next turn |
| Vedalken Orrery | {4} | Every spell, permanently |
| Timely Ward | {2}{W} | Itself, if it targets a commander |
| Yeva, Nature's Herald | {2}{G}{G} | Green creature spells |
| Vivien, Champion of the Wilds | {2}{G} | Creature spells |
| Tidal Barracuda | {3}{U} | Every spell, for every player, but your opponents cannot cast spells during your turn |
| Teferi, Mage of Zhalfir | {2}{U}{U}{U} | Creature cards you own that are not on the battlefield have flash |
| Quicken | {U} | The next sorcery spell you cast this turn, and it draws a card |
"As though it had flash" on a sorcery is the big one. With Vedalken Orrery or Leyline of Anticipation on the battlefield, a board wipe can be cast at the end of an opponent's turn, after they have committed their creatures and before your own turn begins.
What shuts flash off
Flash is a permission. Three kinds of card stop flash: two take the permission away (101.2), and counterspells answer the spell itself (701.6a).
- Sorcery-timing locks. Teferi, Time Raveler and Teferi, Mage of Zhalfir both say each opponent can cast spells only any time they could cast a sorcery. The ruling on Teferi, Time Raveler is explicit: if an effect allows opponents to cast a spell as though it had flash, "the restriction of Teferi's first ability takes precedence over that permission."
- Turn locks. Grand Abolisher stops your opponents casting spells during your turn at all, and Tidal Barracuda does the same on its controller's turn while giving everyone flash the rest of the time.
- Counterspells. A flash spell is still a spell on the stack. Counterspell does not care when it was cast.
Flash, the card
There is also an instant named Flash, and searches for the keyword turn it up. It costs {1}{U} and reads: "You may put a creature card from your hand onto the battlefield. If you do, sacrifice it unless you pay its mana cost reduced by {2}." It does not have the flash keyword and does not give it to anything. It puts the creature onto the battlefield without casting it, and the rulings in our card data note that the creature's enters abilities trigger even if you choose not to pay, and that it is then sacrificed immediately, which triggers its leaves-the-battlefield abilities as well.
Our card data lists Flash as banned in Commander. The other banned cards, and what each one did to earn it, are in our Commander ban list guide.
Frequently asked questions
What does flash mean in MTG?
"You may play this card any time you could cast an instant" (rule 702.8a). In practice: any time you have priority, including during other players' turns and in response to spells and abilities (117.1a).
Is flash the same as an instant?
No. Flash gives a card the timing of an instant and nothing else. A creature with flash is still a creature spell, stays on the battlefield after it resolves, and does not count as an instant for cards that care about instants.
Can a creature with flash attack the turn it comes in?
Only if it has haste, or if it came in before your turn began. A creature cannot attack unless you have controlled it continuously since your most recent turn began (302.6). Cast it during an opponent's end step and it can attack on your next turn.
Can I flash in a creature to block?
Yes. Cast it after attackers are declared, when you have priority in the declare attackers step (508.2), and it can be declared as a blocker in the declare blockers step, because a blocker only has to be untapped (509.1a).
Can a spell with flash be countered?
Yes. It is cast and goes on the stack like any other spell, and a countered spell is put into its owner's graveyard (701.6a).
Can a commander have flash?
Yes. Flash functions in any zone from which you could play the card (702.8a), and you may cast your commander from the command zone (903.8), so Yeva, Nature's Herald or Jin-Gitaxias, Core Augur can be cast from there at instant speed. The commander tax still applies.
What does "as though it had flash" mean?
The spell is cast with instant timing but does not actually gain the keyword. Vedalken Orrery and Leyline of Anticipation say "You may cast spells as though they had flash", which covers creatures, artifacts, enchantments, planeswalkers and sorceries alike.
Does Vedalken Orrery let me play lands at instant speed?
No. Lands are played, not cast. Playing a land is a special action you may take only during a main phase of your own turn when the stack is empty (305.1), and Vedalken Orrery only changes when you may cast spells.
Does flash work on a sorcery?
A sorcery cast "as though it had flash" can be cast any time you could cast an instant. It is still a sorcery, so it still triggers abilities that look for sorceries and can be copied by effects that copy an instant or sorcery spell.
Can I use flash during my opponent's upkeep or end step?
Yes. The active player gets priority in the end step (513.1) and each other player after them, players receive priority in the upkeep step as well, and flash works any time you have priority. The untap step is the exception: no player receives priority there (502.4).
Does flash get around Teferi, Time Raveler?
No. Teferi says each opponent can cast spells only any time they could cast a sorcery, and when one effect allows something and another says it can't happen, the "can't" effect wins (101.2).
Does a creature with flash have summoning sickness?
Yes, flash changes nothing about it (302.6). The creature can block straight away and cannot attack or tap for an ability until you have controlled it since the start of your turn.
Why is the card Flash banned in Commander?
Flash is an instant that puts a creature card from your hand onto the battlefield for two mana, and the creature's enters and leaves-the-battlefield abilities both trigger even if you never pay for it. Our card data lists it as banned in Commander, and the ban list guide covers the list as a whole.
Is flash the same as flashback?
No. Flash is about when you can cast a card. Flashback lets you cast an instant or sorcery from your graveyard by paying its flashback cost (702.34a).
Build a deck that plays on other turns
Open your list in the deck builder and count the cards you can cast on an opponent's turn: instants, flash cards and anything covered by a flash enabler. A deck that can act at instant speed with about a third of its spells rarely wastes mana, and one with almost none always has to move first. Grover can take a brief such as "swap my sorcery-speed creatures for flash versions where the effect is the same" and propose changes in plain language, and the Suggestions tab, powered by Tutor, scores each one against the rest of your list. New to the format? Start with the deck builder basics and the turn phases guide.
Create a free Mana Grove account to build with the full deck builder and format legality checks, see plans and pricing for more time with Grover, Scry and Tutor, browse the card database for the printed text of every card named above, and visit the Commander hub for more guides.
Sources
- Magic: The Gathering Comprehensive Rules, effective September 25, 2026: https://magic.wizards.com/en/rules. Read on November 9, 2026. Rule 702.8 (Flash) including 702.8a and 702.8b, rule 101.2 (a "can't" effect takes precedence), rule 117.1a (when spells can be cast), rules 302.1 and 302.6 (creatures and summoning sickness), rule 305.1 (playing lands), rule 307.1 (sorceries), rules 502.4, 508.2, 509.1a, 513.1 and 514.3 (priority in the untap, declare attackers, declare blockers, end and cleanup steps), rule 608.3a (permanent spells resolving), rule 701.6a (Counter), rule 702.6a (Equip), rule 702.34a (Flashback) and rule 903.8 (casting a commander) are quoted or paraphrased above.
- Mana Grove card database, MTGJSON build of November 5, 2026: the flash keyword, the Commander legality, the mana cost, the rules text and the official rulings of every card named above, the banned status of the card named Flash, the count of 608 Commander-legal cards with flash printed on them (413 creatures; each card name counted once and a double-faced card by its front face), the split by colour, and the count of 83 Commander-legal cards that name flash in their rules text without having the keyword. Commander play frequency is the deck-inclusion popularity rank carried in the same data.
This article is updated when the Comprehensive Rules change the flash entry or when a set adds a flash card worth listing. The date at the top is the last revision.
