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Trigger Effects And Location Changes Before Activation

22_trigger_location_change_before_activation_window.md

Trigger Effects and Location Changes Before Activation

A Trigger Effect can meet its activation condition during a Chain but still fail to activate if the card changes location before the next available activation window.

The key distinction is:

  • The trigger condition may have been met.
  • The effect still does not activate if the card is no longer in the location where that trigger was met when the game checks Trigger Effects for the next Chain.

This is not negation. The effect was never activated.

Rule

If a monster's Trigger Effect meets its activation condition while a Chain or card effect is still resolving, that Trigger Effect waits until the next available opportunity to activate.

If that monster changes location before that opportunity arrives, its Trigger Effect does not activate.

"Location" means the field, GY, hand, banishment, or Deck.

Atlantean Dragoons vs. D.D. Crow

Relevant card text

Atlantean Dragoons

"If this card is sent to the GY to activate a WATER monster's effect: Add 1 Sea Serpent monster from your Deck to your hand, except 'Atlantean Dragoons'."

Mermail Abyssteus

"You can discard 1 other WATER monster to the GY; Special Summon this card from your hand. When Summoned this way: You can add 1 Level 4 or lower 'Mermail' monster from your Deck to your hand."

D.D. Crow

"(Quick Effect): You can discard this card to the GY, then target 1 card in your opponent's GY; banish that target."

Example

Jason discards Atlantean Dragoons to activate Mermail Abyssteus. Joe chains D.D. Crow targeting Atlantean Dragoons in Jason's GY.

Chain:

  1. Chain Link 1: Jason activates Mermail Abyssteus, discarding Atlantean Dragoons to the GY as cost.
  2. Atlantean Dragoons has met its trigger condition, but it cannot activate yet because the Chain is still being built and resolved.
  3. Chain Link 2: Joe activates D.D. Crow, targeting Atlantean Dragoons in the GY.
  4. Chain Link 2 resolves: D.D. Crow banishes Atlantean Dragoons.
  5. Chain Link 1 resolves: Mermail Abyssteus is Special Summoned from the hand.

After the Chain resolves, the game checks Trigger Effects for the next Chain. Atlantean Dragoons is no longer in the GY, which is the location where its trigger condition was met. Therefore, Atlantean Dragoons cannot activate its effect.

Correct ruling

Jason cannot activate the effect of Atlantean Dragoons.

Atlantean Dragoons was sent to the GY to activate a WATER monster's effect, so its trigger condition was initially met. However, it had to wait until the current Chain finished resolving before it could activate. Because D.D. Crow banished Atlantean Dragoons before that next activation window, Atlantean Dragoons changed location from the GY to banishment and its Trigger Effect does not activate.

D.D. Crow did not negate Atlantean Dragoons. It prevented Atlantean Dragoons from being in the correct location when its Trigger Effect would have had the chance to activate.

Related examples

This same principle applies to similar cases:

  • If Cyber Angel Benten is Tributed to activate an effect, then D.D. Crow banishes it from the GY before the Chain resolves, Benten cannot activate afterward.
  • If Graff, Malebranche of the Burning Abyss is sent to the GY as cost, then D.D. Crow banishes it before the Chain resolves, Graff cannot activate afterward.
  • If a monster meets an on-field trigger condition but leaves the field before the next Chain can be built, that on-field Trigger Effect does not activate.

Returned to the Extra Deck or banished face-down: trigger met, but no activation

A monster that goes to a hidden, non-public state cannot activate its Trigger Effects from there, even when the trigger condition was unambiguously met as it moved. The two everyday cases:

  • Returned to the Extra Deck. An Extra Deck monster that is "returned to the hand" or to the Deck goes back to the Extra Deck face-down. Under the current (April 2020 revision) rulings, a monster returned to the Extra Deck does not activate its "if this card leaves the field" Trigger Effect. Elemental HERO Absolute Zero bounced off the field (for example by a Trap that returns attacking monsters to the hand) returns to the Extra Deck and does not destroy the opponent's monsters — its trigger condition ("leaves the field") was met, but the card cannot activate from the face-down Extra Deck.
  • Banished face-down. The same monster banished face-down does not activate either: a face-down banished card has no identity to activate. Banished face-up, however, Elemental HERO Absolute Zero's effect does activate — face-up banishment is a public location its trigger can fire from.

This is not negation and not "missing the timing"; the effect was simply never able to activate. Note the narrow exception class: a Trigger Effect whose ruling states it "does not activate in any particular location" can still fire after returning to the Extra Deck, but this is card-specific (e.g. Sun Dragon Inti) and must not be assumed by default.

Judge calls to watch for

  • Do not treat "the trigger condition was met" as the end of the analysis.
  • Ask whether the card is still in the location where the trigger was met when it would activate.
  • For "leaves the field" triggers, also ask where the card ended up: GY and face-up banishment can activate; the face-down Extra Deck and face-down banishment cannot.
  • D.D. Crow does not negate these effects; it can stop them from activating if it moves the card before the trigger window.
  • Once a Trigger Effect has already activated, moving the card afterward usually does not stop that activated effect from resolving unless the effect specifically requires otherwise.

Sources

What's new

  • Added to corpus.