Changes

| image name = DMindVGDMind-TF03-EN-VG.jpgpng | image size = | image caption =

| arabic = وحوش التأثير | kanji = {{Ruby|効|こう}}{{Ruby|果|か}}(モンスター)<ref group=Notes>The parentheses here specify what part is not shown on the cards' [[Type]]/[[Ability]] line.</ref>|japanese =効果(モンスター)|furigana =こうか(モンスター) | romaji = Kōka (Monsutā) | japanese translated = | english = Effect (Monster) | french = (Monstre à) Effet | german = Effekt(monster) | italian = (Mostro con) Effetto | korean = 효과 (몬스터) (效果 (Monster)) ''Hyogwa (Monseuteo)'' | portuguese = (Monstro de) Efeito | spanish = (Monstruo de) Efecto|chinese =效果(怪獸) ''Xiàoguǒ (Guàishòu) / Haau6 gwo2 (Gwaai3 sau3)''|simplified chinese=效果(怪兽) ''Xiàoguǒ (Guàishòu)''

| list = List of Effect Monsters | support list = List of Effect Monster support cards | anti-support list = List of Effect Monster anti-support cards

'''Effect Monsters''' (Japanese: {{Ruby|効|こう}}{{Ruby|果|か}}モンスター ''Kōka Monsutā'') are a subcategory of [[Monster Cardsmonster]] s with an orange color border, and were first introduced in the ''at least one [[monster effect]] or [[Vol.3condition]]'' booster pack. Unlike Effect [[non-Effect MonsterCard]]s in the [[Main Deck]] (particularly excluding [[Normal MonstersRitual Monster]]s), these monsters have an effect (Special Ability in the English anime)orange card frame, which is demonstrated clearly and are designated by the fact that they have text "/Effect" on the [[Type]] 'Effect' beside their regular sub-type (/[[Reptileability]], line. They were first introduced in the ''[[SpellcasterVol.3]], etc'' booster pack.). Effects vary greatly, and are classed in four different types:

* Originally, Effect Monsters which also had [[Continuous EffectAbility|Continuousabilities]]* (such as [[Ignition EffectToon monster|IgnitionToon]]* and [[Trigger EffectGemini monster|TriggerGemini]] (including ) or were [[Flip effectTuner monster|FlipTuners]] effects)* would display their subtype and not "/Effect". From ''[[Quick Effect|QuickBattle Pack 3: Monster League]]'' onward, all Effect Monsters now include "/Effect" regardless of their abilities or status as a Tuner monster. Regardless, monsters that have abilities are always Effect Monsters (although this is not the case for Tuner monsters).

Originally, Effect Monsters which also had [[Ability|abilities]] (such as [[Toon monster|Toon]] and [[Gemini monster|Gemini]]) or were [[Tuner monster|Tuners]] would display their subtype instead of "/Effect". From ''[[Battle Pack 3: Monster League]]'' onward, all Effect Monsters now include "/Effect" regardless of their abilities or status as a Tuner monster. Some [[Fusion Monster|Fusion]], [[Ritual Monster|Ritual]], [[Synchro Monster|Synchro]], [[Xyz Monster|Xyz]]s, [[Pendulum Monster|Pendulum]]s, and [[Link Monster]]s have effects, and are therefore can also treated as Effect Monsters. [[Toon Monster|Toon]], [[Union Monsters|Union]], [[Gemini monster|Gemini]], [[Spirit monster|Spirit]], and some [[Tuner monster|Tuner]] monsters are all types of Effect Monsters. An Effect Monster's effect, if particularly powerful, may be balanced out by the monster itself being comparatively weak in ATK and DEF for its level (such as cards like "[[Ancient Gear Engineer]]" or "[[Needle Burrower]]"). Additionally, some cards with ATK that is too high for a monster of its Level may have [[negative effects]] detrimental to their use (such as cards like "[[Giant Kozaky]]" or "[[Giant Orc]]"). Some Effect Monsters have a dot (•) with an effect written after it. This dot usually represents an effect that is active while certain requirements are met, and sometimes this effect can be negated on its own when those requirements are no longer met (ex, the [[Gadjiltron]] monsters have different effects based on which monster is used to [[Tribute Summon]] it,the [[Infernity]] monsters have effects that are only active while the controller has no cards in their hand, and the [[Morphtronic]] monsters have two different effects, and either one of those effects can be active while that monster is in a certain [[battle position]]). Some Effect Monsters that have 2 or more dots usually have effects that give the controller a choice on what they want to do at a certain time (ex, "[[Don Zaloog]]", or "[[Flying Fortress SKY FIRE]]"), but some of these effects have a basis for the activation (ex, "[[Neo-Spacian Glow Moss]]" and all [[Fusion Monsters]] with "[[Neo-Spacian Glow Moss]]" as a [[Fusion Material Monster]], "[[Gorz the Emissary of Darkness]]" and "[[Dark Hunter]]").

<{{Show card image gallery widths="200" position="center" captionalign="center">DarkMagicianGirl-YSYR-EN-C-1E.png | Dark Magician Girl | Effect MonsterSymphonicWarriorSynthess-RATE-EN-C-1E.png | Symphonic Warrior Synthess | Flip monsterToonBusterBlader-MP16-EN-R-1E.png | Toon Buster Blader | Toon monsterShinobirdCrow-RATE-EN-C-1E.png | Shinobird Crow | Spirit monsterBBusterDrake| B-SDKS-EN-SR-1E.png Buster Drake | Union monsterChemicritterOxyOx| Chemicritter Oxy Ox | Gemini monster| Windwitch -INOV-EN-C-1E.png Snow Bell | Gemini Effect Tuner monster</gallery>}}

{{GameplayCard types}}