Declare blockers step: Difference between revisions
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{{Rules| | {{Rules| | ||
text = '''From the [[Comprehensive Rules]]''' | text = '''From the [[Comprehensive Rules]]''' | ||
309. Declare Blockers Step | |||
*309.1. As the declare blockers step begins, the defending player declares blockers (this game action doesn’t use the stack). Then any abilities that triggered on blockers being declared go on the stack. (See rule 410, “Handling Triggered Abilities.”) Then the active player gets priority and players may play spells and abilities. | |||
*309.2. To declare blockers, the defending player follows the steps below, in order. If at any point during the declaration of blockers, the defending player is unable to comply with any of the steps listed below, the declaration was illegal; the game returns to the moment before the declaration (see rule 422, “Handling Illegal Actions,” and rule 500, “Legal Attacks and Blocks”). | |||
:*309.2a For each untapped creature the defending player controls, that player either chooses not to block with it, or chooses one creature for it to block that’s attacking him, her, or a planeswalker he or she controls. Then he or she determines whether this set of blocks is legal. (See rule 500, “Legal Attacks and Blocks.”) | |||
:*309.2b If any of the creatures require paying costs to block, the defending player determines the total cost to block. Costs may include paying mana, tapping permanents, sacrificing permanents, discarding cards, and so on. Once the total cost is determined, it becomes “locked in.” If effects would change the total cost after this time, ignore this change. | |||
:*309.2c If any of the costs require mana, the defending player then has a chance to play mana abilities (see rule 411, “Playing Mana Abilities”). | |||
Example: A creature has the ability “Whenever this creature becomes blocked by a white creature, destroy that creature at end of combat.” If that creature is blocked by a black creature that is later turned white, the ability will not trigger. | |||
:*309.2d Once the player has enough mana in his or her mana pool, he or she pays all costs in any order. Partial payments are not allowed. | |||
:*309.2e Each chosen creature becomes a blocking creature, but only if it’s controlled by the defending player. Each one is blocking the attacking creature chosen for it. It remains a blocking creature until it’s removed from combat or the combat phase ends, whichever comes first. See rule 306.4. | |||
:*309.2f An attacking creature with one or more creatures declared as blockers for it becomes a blocked creature; one with no blockers becomes an unblocked creature. This remains unchanged until the creature is removed from combat or the combat phase ends, whichever comes first. (Some effects can change whether a creature is blocked or unblocked.) | |||
*309.3. Abilities that trigger on a creature blocking trigger only at the point the creature is declared as a blocker. They will not trigger if a creature blocks, and then that creature’s characteristics change to match the ability’s trigger condition. | |||
*309.4. Abilities that trigger on a creature becoming blocked trigger only at the first point the creature becomes blocked that combat. They will trigger if a creature becomes blocked by a creature declared as a blocker, by a creature that’s put into play as a blocker, or by an effect, but only if the attacking creature hadn’t yet been blocked that combat. They will not trigger if a creature becomes blocked, and then the blocking creature’s characteristics change to match the ability’s trigger condition. | |||
::Example: A creature has the ability “Whenever this creature becomes blocked by a white creature, destroy that creature at end of combat.” If that creature is blocked by a black creature that is later turned white, the ability will not trigger. | |||
*309.5. If a creature is put into play blocking, its controller chooses which attacking creature it’s blocking as it comes into play (unless the effect that put it into play specifies what it’s blocking). Such creatures are “blocking” but, for the purposes of trigger events and effects, they never “blocked.” | |||
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[[Category:Magic rules]][[Category:Turn structure]] | [[Category:Magic rules]][[Category:Turn structure]] | ||
Revision as of 13:16, 18 October 2007
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