Mana ability

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A mana ability is an activated ability that creates mana (including with lands like Mountain or other cards like Birds of Paradise and Ur-Golem's Eye), or a triggered ability that triggers off of mana creation and makes more mana itself (such as with Overgrowth or the last ability on Gauntlet of Power).[1] However, abilities with targets or loyalty abilities never count as mana abilities.

Description

The five most common mana abilities are the intrinsic abilities of the basic lands and other lands with basic land types, which add one mana of a given color at the cost of tapping the land. Many other lands and ramp cards are printed with identical abilities. However, a wide variety of other kinds of mana abilities exist, such as those that create multiple mana, variable or conditional amounts of mana, flexible types of mana, or mana that has special properties or restrictions.

Mana abilities are among the few activated or triggered abilities that don't use the stack or require passing priority to resolve, so they cannot be responded to or targeted. This means that as soon as the ability is used, the mana is created. Furthermore, they are the only abilities that can be activated while paying costs rather than needing to be resolved beforehand, and without requiring priority. In practice, this simply means that a player can use mana abilities any time they please, usually while playing a spell or ability and paying the cost. Other effects of the mana ability, such as the damage that sometimes happens when using Adarkar Wastes, also occur immediately and can't be responded to. This can cause unusual situations such as a player "countering" a split second spell like Sudden Death with the passive ability of a permanent like Gavony Ironwright or Righteous Valkyrie.

Spells that generate mana, such as Seething Song, use the stack normally and can be responded to and targeted. For a brief period from 1996 to 1997, the Mana source card type was used for such cards, behaving similarly to mana abilities, but this was quickly reworked, and those cards errataed to simple instants.

Rules

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

Mana Ability
An activated or triggered ability that could create mana and doesn’t use the stack. See rule 605, “Mana Abilities.”

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

  • 605. Mana Abilities
    • 605.1. Some activated abilities and some triggered abilities are mana abilities, which are subject to special rules. Only abilities that meet either of the following two sets of criteria are mana abilities, regardless of what other effects they may generate or what timing restrictions (such as “Activate only as an instant”) they may have.
      • 605.1a An activated ability is a mana ability if it meets all of the following criteria: it doesn’t require a target (see rule 115.6), it could add mana to a player’s mana pool when it resolves, and it’s not a loyalty ability. (See rule 606, “Loyalty Abilities.”)
      • 605.1b A triggered ability is a mana ability if it meets all of the following criteria: it doesn’t require a target (see rule 115.6), it triggers from the activation or resolution of an activated mana ability (see rule 605.1a) or from mana being added to a player’s mana pool, and it could add mana to a player’s mana pool when it resolves.
    • 605.2. A mana ability remains a mana ability even if the game state doesn’t allow it to produce mana.

      Example: A permanent has an ability that reads “{T}: Add {G} for each creature you control.” The ability is still a mana ability even if you control no creatures or if the permanent is already tapped.

    • 605.3. Activating an activated mana ability follows the rules for activating any other activated ability (see rule 602.2), with the following exceptions:
      • 605.3a A player may activate an activated mana ability whenever they have priority, whenever they are casting a spell or activating an ability that requires a mana payment, or whenever a rule or effect asks for a mana payment, even if it’s in the middle of casting or resolving a spell or activating or resolving an ability.
      • 605.3b An activated mana ability doesn’t go on the stack, so it can’t be targeted, countered, or otherwise responded to. Rather, it resolves immediately after it is activated. (See rule 405.6c.)
      • 605.3c Once a player begins to activate a mana ability, that ability can’t be activated again until it has resolved.
    • 605.4. Triggered mana abilities follow all the rules for other triggered abilities (see rule 603, “Handling Triggered Abilities”), with the following exception:
      • 605.4a A triggered mana ability doesn’t go on the stack, so it can’t be targeted, countered, or otherwise responded to. Rather, it resolves immediately after the mana ability that triggered it, without waiting for priority.

        Example: An enchantment reads, “Whenever a player taps a land for mana, that player adds one mana of any type that land produced.” If a player taps lands for mana while casting a spell, the additional mana is added immediately and can be used to pay for the spell.

    • 605.5. Abilities that don’t meet the criteria specified in rules 605.1a–b and spells aren’t mana abilities.
      • 605.5a An ability with a target is not a mana ability, even if it could put mana into a player’s mana pool when it resolves. The same is true for a triggered ability that could produce mana but triggers from an event other than activating a mana ability, or a triggered ability that triggers from activating a mana ability but couldn’t produce mana. These follow the normal rules for activated or triggered abilities, as appropriate.
      • 605.5b A spell can never be a mana ability, even if it could put mana into a player’s mana pool when it resolves. It’s cast and resolves just like any other spell. Some older cards were printed with the card type “mana source”; these cards have received errata in the Oracle card reference and are now instants.

Rulings

  • If a mana ability can't produce any mana, it's still legal to play the ability, but no mana will be produced on resolution.
  • Playing a mana ability that happens to produce no mana still counts as playing that ability. Some abilities trigger when a land is tapped for mana, and they will trigger when a land is tapped for a mana ability even if that ability generates zero mana.

References

  1. Wizards of the Coast (August, 2007). "Ask Wizards - August, 2008". magicthegathering.com. Wizards of the Coast.