Conventions of 3000 ATK and DEF

The Conventions of 3000 ATK and DEF are general unwritten conventions stating that in order for a monster to have an original ATK or DEF of over 3000, it either must have negative effects to limit its playability, or otherwise have special conditions for being Summoned. This convention is similar to the "Level 4 ATK and DEF conventions".

3000 ATK or more

"Super Conductor Tyranno", a monster that breaks the convention by having over 3000 original ATK and being Normal Summonable with no drawback.

In general, monsters with up to 3000 ATK may be Normal Summoned with neither any special conditions nor any negative effects, such as the iconic "Blue-Eyes White Dragon". Many such monsters even have beneficial effects. However, monsters with greater than 3000 ATK should either possess negative effects in order to remain Normal Summonable, such as "Arcana Force XXI - The World" or "Ultimate Obedient Fiend", or must have Summoning conditions that prevent them from being Normal Summoned. All Extra Deck monsters fall into the latter category.

"Super Conductor Tyranno" and "Ogdoabyss, the Ogdoadic Overlord" are currently the only exceptions to this convention. There are currently 211 monsters with over 3000 ATK.

TCG/OCG Cards with more than 3000 ATK

Name	Japanese name	Primary type	Attribute	Type	Level/ Rank	Scale	ATK	DEF
A-to-Z-Dragon Buster Cannon	ＡｔｏＺ（エートゥズィ）－ドラゴン・バスターキャノン	Effect Monster Fusion Monster	LIGHT	Machine	10		4000	4000
Ally of Justice Decisive Armor	Ａ・Ｏ・Ｊ（アーリー・オブ・ジャスティス） ディサイシブ・アームズ	Synchro Monster Effect Monster	DARK	Machine	10		3300	3300
Amazoness Kaiserin	アマゾネス女帝王（カイゼリン）	Effect Monster Fusion Monster	EARTH	Warrior	10		3200	2800
Ancient Gear Megaton Golem	古代の機械超巨人（アンティーク・ギア・メガトン・ゴーレム）	Effect Monster Fusion Monster	EARTH	Machine	9		3300	3300
Arcana Force EX - The Dark Ruler	アルカナフォースＥＸ（エクストラ）－ＴＨＥ ＤＡＲＫ ＲＵＬＥＲ（ザ・ダーク・ルーラー）	Effect Monster	LIGHT	Fairy	10		4000	4000
Arcana Force EX - The Light Ruler	アルカナフォースＥＸ（エクストラ）－ＴＨＥ ＬＩＧＨＴ ＲＵＬＥＲ（ザ・ライト・ルーラー）	Effect Monster	LIGHT	Fairy	10		4000	4000
Arcana Force XXI - The World	アルカナフォースⅩⅩⅠ（トゥエンティーワン）－ＴＨＥ ＷＯＲＬＤ（ザ・ワールド）	Effect Monster	LIGHT	Fairy	8		3100	3100
Arcana Knight Joker	アルカナ ナイトジョーカー	Effect Monster Fusion Monster	LIGHT	Warrior	9		3800	2500
Archfiend Black Skull Dragon	悪（あく）魔（ま）竜（りゅう）ブラック・デーモンズ・ドラゴン	Effect Monster Fusion Monster	DARK	Dragon	9		3200	2500
Armed Dragon Catapult Cannon	アームド・ドラゴン・カタパルトキャノン	Effect Monster Fusion Monster	LIGHT	Machine	10		3500	3000

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3000 DEF or more

"Neo Aqua Madoor" is a 1 Tribute 3000 DEF Normal Monster.

Similar to the above convention, in general, monsters with up to 3000 DEF may be Normal Summoned (or Set) without either special conditions or drawbacks. Monsters in this category include "Labyrinth Wall" and "Millennium Shield", both Level 5 Normal Monsters with 0 ATK and 3000 DEF. However, monsters with greater than 3000 DEF must either have negative effects or Summoning conditions to hamper their usefulness. Many monsters with greater than 3000 DEF have greater than 3000 ATK as well.

The only monster to break this convention is "Superheavy Samurai Big Benkei", with 3500 DEF but the ability to be Normal Summoned/Set with a beneficial effect to boot. In fact, as its effect allows it to use its DEF score for attacking as well, it may be somewhat considered an additional monster to break the 3000 ATK convention.

There are currently 96 monsters with over 3000 DEF.

TCG/OCG Cards with more than 3000 DEF

Name	Japanese name	Primary type	Secondary type	Attribute	Type	Level/ Rank	Scale	ATK	DEF
A-to-Z-Dragon Buster Cannon	ＡｔｏＺ（エートゥズィ）－ドラゴン・バスターキャノン	Effect Monster Fusion Monster		LIGHT	Machine	10		4000	4000
Ally of Justice Decisive Armor	Ａ・Ｏ・Ｊ（アーリー・オブ・ジャスティス） ディサイシブ・アームズ	Synchro Monster Effect Monster		DARK	Machine	10		3300	3300
Alsei, the Sylvan High Protector	森（しん）羅（ら）の守（もり）神（がみ） アルセイ	Xyz Monster Effect Monster		LIGHT	Plant	8		2300	3200
Ancient Gear Megaton Golem	古代の機械超巨人（アンティーク・ギア・メガトン・ゴーレム）	Effect Monster Fusion Monster		EARTH	Machine	9		3300	3300
Arcana Force EX - The Dark Ruler	アルカナフォースＥＸ（エクストラ）－ＴＨＥ ＤＡＲＫ ＲＵＬＥＲ（ザ・ダーク・ルーラー）	Effect Monster		LIGHT	Fairy	10		4000	4000
Arcana Force EX - The Light Ruler	アルカナフォースＥＸ（エクストラ）－ＴＨＥ ＬＩＧＨＴ ＲＵＬＥＲ（ザ・ライト・ルーラー）	Effect Monster		LIGHT	Fairy	10		4000	4000
Arcana Force XXI - The World	アルカナフォースⅩⅩⅠ（トゥエンティーワン）－ＴＨＥ ＷＯＲＬＤ（ザ・ワールド）	Effect Monster		LIGHT	Fairy	8		3100	3100
Avida, Rebuilder of Worlds	双（そう）星（せい）神（しん） ａ－ｖｉｄａ（アヴィダ）	Effect Monster		LIGHT	Cyberse	11		3500	3500
Barbaroid, the Ultimate Battle Machine	極（きょく）戦（せん）機（き）王（おう）ヴァルバロイド	Effect Monster Fusion Monster		EARTH	Machine	12		4000	4000
Beelzeus of the Diabolic Dragons	魔（ま）王（おう）超（ちょう）龍（りゅう） ベエルゼウス	Synchro Monster Effect Monster		DARK	Dragon	10		4000	4000

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