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→Identifying Trigger Effects
==Identifying Trigger Effects==
For cards with [[Problem-Solving Card Text]], Trigger Effects can be identified by looking for a timing or event-related condition, followed by a colon. For example, the text "''During the Standby Phase: You can...''" or "''If this card is destroyed by battle: You can...''" indicates that the effect is a Trigger Effect, as they identify a specific phase or event during which the effect activates.
Optional effects with the activation timing "''Once per turn: You can...''" or "''During your Main Phase: You can...''" are [[Ignition Effect]]s rather than Trigger Effects. Trigger Effects may use the phrase "once per turn" in their activation timing, but not on its own.
If an optional Trigger Effect that does not miss the timing or a mandatory Trigger Effect meets its activation timing at an instant that Spell Speed 1 effects cannot be activated, such as when a [[Chain]] already exists, then it will start a [[Chain]] at the next possible opportunity. "If" and "during" are commonly used in place of "when" for effects that cannot miss the timing.
For example, "[[Peten the Dark Clown]]" has a "when" optional Trigger Effect. When a monster is [[Tribute Summon]]ed using "[[Peten the Dark Clown]]" as [[Tribute]], first the Tribute "Peten the Dark Clown" is sent to the Graveyard, then a monster is Tribute Summoned. While the The effect of "Peten the Dark Clown" would have met its activation timing when "Peten the Dark Clown" it was sent to the Graveyard, but because a new monster was Tribute Summoned before it its effect had a chance to activate, it its effect cannotactivate.
In contrast, "[[Mermail Abysshilde]]" has an "if" optional Trigger Effect and "[[Flowerbot]]" has a mandatory Trigger Effect. If "Mermail Abysshilde" or "Flowerbot" is Tributed for a Tribute Summon, its Trigger Effect can be activated.