Comprehensive Rules
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Some spells have alternative costs. An alternative cost is a cost listed in a spell’s text, or applied to it from another effect, that its controller may pay rather than paying the spell’s mana cost. Alternative costs are usually phrased, “You may [action] rather than pay [this object’s] mana cost,” or “You may cast [this object] without paying its mana cost.” Note that some alternative costs are listed in keywords; see rule 702.
If the spell is modal, the player announces the mode choice (see rule ). If the player wishes to splice any cards onto the spell (see rule 702.47), they reveal those cards in their hand. If the spell has alternative or additional costs that will be paid as it’s being cast such as buyback or kicker costs (see rules and 118.9), the player announces their intentions to pay any or all of those costs (see rule ). A player can’t apply two alternative methods of casting or two alternative costs to a single spell. If the spell has a variable cost that will be paid as it’s being cast (such as an {X} in its mana cost; see rule ), the player announces the value of that variable. If the value of that variable is defined in the text of the spell by a choice that player would make later in the announcement or resolution of the spell, that player makes that choice at this time instead of that later time. If a cost that will be paid as the spell is being cast includes hybrid mana symbols, the player announces the nonhybrid equivalent cost they intend to pay. If a cost that will be paid as the spell is being cast includes Phyrexian mana symbols, the player announces whether they intend to pay 2 life or a corresponding colored mana cost for each of those symbols. Previously made choices (such as choosing to cast a spell with flashback from a graveyard or choosing to cast a creature with morph face down) may restrict the player’s options when making these choices.
Most abilities describe exactly what they do in the card’s rules text. Some, though, are very common or would require too much space to define on the card. In these cases, the object lists only the name of the ability as a “keyword”; sometimes reminder text summarizes the game rule.
If an effect refers to a “[keyword ability] cost,” it refers only to the variable costs for that keyword.
An effect that grants an object a keyword ability may define a variable in that ability based on characteristics of that object or other information about the game state. For these abilities, the value of that variable is constantly reevaluated.
An effect may state that “the same is true for” a list of keyword abilities or similar. If one of those keyword abilities has variants or variables and the effect grants that keyword or counters of that keyword to one or more objects and/or players, it grants each appropriate variant and variable of that keyword.
An effect may refer to an object “with [keyword ability]” or “that has [keyword ability].” This means the same thing as an object “with a [keyword ability] ability” or an object “that has a [keyword ability] ability.”
Deathtouch
Deathtouch is a static ability.
A creature with toughness greater than 0 that’s been dealt damage by a source with deathtouch since the last time state-based actions were checked is destroyed as a state-based action. See rule 704.
Any nonzero amount of combat damage assigned to a creature by a source with deathtouch is considered to be lethal damage for the purposes of determining if a proposed combat damage assignment is valid, regardless of that creature’s toughness. See rules –d.
The deathtouch rules function no matter what zone an object with deathtouch deals damage from.
If an object changes zones before an effect causes it to deal damage, its last known information is used to determine whether it had deathtouch.
Flying
Flying is an evasion ability.
A creature with flying can’t be blocked except by creatures with flying and/or reach. A creature with flying can block a creature with or without flying. (See rule , “Declare Blockers Step,” and rule 702.17, “Reach.”)
Multiple instances of flying on the same creature are redundant.
If multiple sources with lifelink deal damage at the same time, they cause separate life gain events (see rules 119.9–10).
A creature with flying can’t be blocked except by creatures with flying and/or reach. (See rule , “Declare Blockers Step,” and rule 702.9, “Flying.”)
Infect
Infect is a static ability.
Damage dealt to a player by a source with infect doesn’t cause that player to lose life. Rather, it causes that source’s controller to give the player that many poison counters. See rule .
Damage dealt to a creature by a source with infect isn’t marked on that creature. Rather, it causes that source’s controller to put that many -1/-1 counters on that creature. See rule .
If an object changes zones before an effect causes it to deal damage, its last known information is used to determine whether it had infect.
The infect rules function no matter what zone an object with infect deals damage from.
Multiple instances of infect on the same object are redundant.
Battle Cry
Battle cry is a triggered ability. “Battle cry” means “Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.”
If a creature has multiple instances of battle cry, each triggers separately.
Living Weapon
Living weapon is a triggered ability. “Living weapon” means “When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this Equipment to it.”
Undying
Undying is a triggered ability. “Undying” means “When this permanent is put into a graveyard from the battlefield, if it had no +1/+1 counters on it, return it to the battlefield under its owner’s control with a +1/+1 counter on it.”
Miracle
Miracle is a static ability linked to a triggered ability. (See rule .) “Miracle [cost]” means “You may reveal this card from your hand as you draw it if it’s the first card you’ve drawn this turn. When you reveal this card this way, you may cast it by paying [cost] rather than its mana cost.”
If a player chooses to reveal a card using its miracle ability, they play with that card revealed until that card leaves their hand, that ability resolves, or that ability otherwise leaves the stack. (See rule .)
Soulbond
Soulbond is a keyword that represents two triggered abilities. “Soulbond” means “When this creature enters, if you control both this creature and another creature and both are unpaired, you may pair this creature with another unpaired creature you control for as long as both remain creatures on the battlefield under your control” and “Whenever another creature you control enters, if you control both that creature and this one and both are unpaired, you may pair that creature with this creature for as long as both remain creatures on the battlefield under your control.”
A creature becomes “paired” with another as the result of a soulbond ability. Abilities may refer to a paired creature, the creature another creature is paired with, or whether a creature is paired. An “unpaired” creature is one that is not paired.
When the soulbond ability resolves, if either object that would be paired is no longer a creature, no longer on the battlefield, or no longer under the control of the player who controls the soulbond ability, neither object becomes paired.
A creature can be paired with only one other creature.
A paired creature becomes unpaired if any of the following occur: another player gains control of it or the creature it’s paired with; it or the creature it’s paired with stops being a creature; or it or the creature it’s paired with leaves the battlefield.
Overload
Overload is a keyword that represents two static abilities that function while the spell with overload is on the stack. Overload [cost] means “You may choose to pay [cost] rather than pay this spell’s mana cost” and “If you chose to pay this spell’s overload cost, change its text by replacing all instances of the word ‘target’ with the word ‘each.’” Casting a spell using its overload ability follows the rules for paying alternative costs in rules and –h.
If a player chooses to pay the overload cost of a spell, that spell won’t require any targets. It may affect objects that couldn’t be chosen as legal targets if the spell were cast without its overload cost being paid.
Overload’s second ability creates a text-changing effect. See rule , “Text-Changing Effects.”
Scavenge
Scavenge is an activated ability that functions only while the card with scavenge is in a graveyard. “Scavenge [cost]” means “[Cost], Exile this card from your graveyard: Put a number of +1/+1 counters equal to the power of the card you exiled on target creature. Activate only as a sorcery.”
Unleash
Unleash is a keyword that represents two static abilities. “Unleash” means “You may have this permanent enter with an additional +1/+1 counter on it” and “This permanent can’t block as long as it has a +1/+1 counter on it.”
Cipher
Cipher appears on some instants and sorceries. It represents two abilities. The first is a spell ability that functions while the spell with cipher is on the stack. The second is a static ability that functions while the card with cipher is in the exile zone. “Cipher” means “If this spell is represented by a card, you may exile this card encoded on a creature you control” and “For as long as this card is encoded on that creature, that creature has ‘Whenever this creature deals combat damage to a player, you may copy the encoded card and you may cast the copy without paying its mana cost.’”
The term “encoded” describes the relationship between the card with cipher while in the exile zone and the creature chosen when the spell represented by that card resolves.
The card with cipher remains encoded on the chosen creature as long as the card with cipher remains exiled and the creature remains on the battlefield. The card remains encoded on that object even if it changes controller or stops being a creature, as long as it remains on the battlefield.
Partner abilities are keyword abilities that modify the rules for deck construction in the Commander variant (see rule 903), and they function before the game begins. Each partner ability allows you to designate two legendary cards as your commander rather than one. Each partner ability has its own requirements for those two commanders. The partner abilities are: partner, partner with [name], friends forever, choose a Background, and Doctor’s companion.
A rule or effect that refers to your commander’s color identity refers to the combined color identities of your two commanders. See rule 903.4.
Except for determining the color identity of your commander, the two commanders function independently. When casting a commander with partner, ignore how many times your other commander has been cast (see rule 903.8). When determining whether a player has been dealt 21 or more combat damage by the same commander, consider damage from each of your two commanders separately (see rule 903.10a).
Commander Draft deck construction follows the same rules as Commander deck construction (see rule 903.5) with three exceptions: (1) A player’s deck must contain at least 60 cards. There is no maximum deck size. (2) A player’s deck may include any number of cards from that player’s card pool with the same name. (3) If the draft contained draft boosters from Commander Masters, any card which can be a player’s commander by itself and whose color identity includes one or fewer colors is considered to have the partner ability for the purposes of deckbuilding. (See rule 702.124, “Partner.”)
Conspiracy cards with hidden agenda are put into the command zone face down. Any time a player has priority, they may turn a face-down conspiracy card they control face up. See rule 702.106, “Hidden Agenda.”