Trigger Effect



Japanese (ruby)


Japanese (base text)

(ゆう) (はつ) (こう) ()

Japanese (romanized)

Yūhatsu Kōka

Japanese (translated)

Evoked Effect


Trigger Effect

Trigger Effects (Japanese: (ゆう) (はつ) (こう) () Yūhatsu Kōka, Evoked Effect) are a type of card effect for Monster Cards that activate when a certain condition is met. Trigger-like Effects are the parallel type of card effect for Spell/Trap Cards.

Trigger Effects are Spell Speed 1 effects. In general, Trigger Effects can be activated during any phase, although many individual Trigger Effects have restrictions on the phases in which they can be activated as part of their activation timing. Trigger Effects can be mandatory or optional. Here is an example. If you control "Starving Venom Fusion Dragon", its effect states: "If this card is Fusion Summoned, you can make this card gain ATK equal to 1 opponent's Special Summoned Monster." If this card IS successfully Fusion Summoned, then its controller can choose when to activate the effect. This is because "IF" effects cannot miss the timing. However, this effect only lasts until the end of the current turn.

Trigger Effects activate only once each time their condition is met. For example, if you control "Solemn Wishes" and draw 2 cards at once, you will only gain 500 LP because you performed only one act of drawing cards; and if you control "Aromage Jasmine" and gain 1000 LP, you will draw 1 card (not 1000).

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 Effects rather than Trigger Effects. Trigger Effects may use the phrase "once per turn" in their activation timing, but not on its own.

Effects with the phrase "during either player's turn" in their activation timing are Quick Effects rather than Trigger Effects.


Missing the timing

Optional Trigger Effects that use the word "when" in their activation timing can miss the timing. This occurs when a optional Trigger Effect that uses "when" meets its activation timing, but another action is performed before it has a chance to activate.

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 Summoned 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. The effect of "Peten the Dark Clown" would have met its activation timing when it was sent to the Graveyard, but because a new monster was Summoned before its effect had a chance to activate, its effect cannot activate.

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.

Simultaneous Effects Go On Chain

If multiple Trigger or Trigger-like Effects would activate at the same time, they are all be placed on the same Chain without any of them missing the timing.

The order these effects are added to the Chain depends on whether the effect is mandatory or optional, whether it is activated by the turn player or non-turn player.


The effect of "Zaborg the Thunder Monarch" is a mandatory Trigger Effect that activates when it is Tribute Summoned. This effect targets 1 monster on the field, then destroys that target when it resolves.


List of TCG and OCG Monsters with Trigger Effects

 Japanese nameRankLevelAttributeTypeCard typeATKDEF
Air Armor Ninja機甲忍者エアー4WINDWarriorEffect Monster
Monster Card
Akashic Magicianアカシック・マジシャンDARKSpellcasterEffect Monster
Monster Card
Link Monster
Alsei, the Sylvan High Protector森羅の守神 アルセイ8LIGHTPlantEffect Monster
Monster Card
Xyz Monster
Ancient Crimson Apeエンシェント・クリムゾン・エイプ7LIGHTBeastEffect Monster
Monster Card
Ancient Warriors - Rebellious Lu Feng戦華の叛-呂奉8DARKBeast-WarriorEffect Monster
Monster Card
Ankuribohアンクリボー1DARKFiendEffect Monster
Monster Card
Aqua Armor Ninja機甲忍者アクア4WATERWarriorEffect Monster
Monster Card
Armed Dragon LV10 - Whiteアームド・ドラゴン LV10-ホワイト10LIGHTDragonEffect Monster
Monster Card
Armed Dragon Thunder LV3アームド・ドラゴン・サンダーLV33WINDDragonEffect Monster
Monster Card
Armed Dragon Thunder LV5アームド・ドラゴン・サンダーLV55WINDDragonEffect Monster
Monster Card
... further results
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