Instant

Instant
Card Type
Subtype	Spell type
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type:"Instant"

Instants, like sorceries, represent one-shot or short-term magical spells. They are never put onto the battlefield; instead, they take effect when their mana cost is paid and the spell resolves, and then are immediately put into the player's graveyard.

Description

Instants are the only card type in Magic to have no timing restrictions. They can be played at any time one has priority, including during other player's turns and while another spell or ability is waiting to resolve.

Rules

From the glossary of the Comprehensive Rules (June 7, 2024—Modern Horizons 3)

Instant

A card type. An instant is not a permanent. See rule 304, “Instants.”

From the Comprehensive Rules (June 7, 2024—Modern Horizons 3)

• 304. Instants
  • 304.1. A player who has priority may cast an instant card from their hand. Casting an instant as a spell uses the stack. (See rule 601, “Casting Spells.”)
  • 304.2. When an instant spell resolves, the actions stated in its rules text are followed. Then it’s put into its owner’s graveyard.
  • 304.3. Instant subtypes are always a single word and are listed after a long dash: “Instant — Arcane.” Each word after the dash is a separate subtype. The set of instant subtypes is the same as the set of sorcery subtypes; these subtypes are called spell types. Instants may have multiple subtypes. See rule 205.3k for the complete list of spell types.
  • 304.4. Instants can’t enter the battlefield. If an instant would enter the battlefield, it remains in its previous zone instead.
  • 304.5. If text states that a player may do something “any time they could cast an instant” or “only as an instant,” it means only that the player must have priority. The player doesn’t need to have an instant card they could cast. Effects that would preclude that player from casting an instant spell don’t affect the player’s capability to perform that action (unless the action is actually casting an instant spell).

Subtypes

The subtype for instants is called spell type and shared with sorceries.

Friendly to instants

Blue and red are the two colors that most appreciate instants and reward the player for playing them.

Instant speed

The informal term "instant speed" means "whenever you would be able to cast instant spells". This is most often used by the keyword Flash, granting "instancy" to any card type. Some abilities have "sorcery speed" baked into their rules, and some cards allow them to be activated "any time you could cast an instant". However, the timing restriction has been used to turn mana abilities into non-mana abilities, most famously Lion's Eye Diamond - this is to prevent it from casting spells, as part of the process of casting a spell is putting the spell from the hand onto the stack before paying costs. Starting with Strixhaven: School of Mages, the card text "only any time you could cast an instant" was shortened to "activate as an instant."

The opposite of instant speed is sorcery speed.

Obsolete card types

The cards with the types mana source or interrupt became instants.

Hypothetical change

To simplify the rules, the developers discussed changing Instant from a card type to a supertype, so that it may be added to any card. This would mean flash could be removed as a keyword. All current cards with flash would instead have the "Instant" supertype. Any cards that are currently instants would instead be "Instant Sorcery".

This change is unlikely to occur due to inertia.