Created by: YGO Mod (20517634)
Created On: 04/16/2026
The Unsealed Forbidden Door
Main: 30




LIGHT
8B.E.S. Big Core MK-3
ATK:
2700
DEF:
1900
If your opponent controls a monster and you control no monsters, you can Special Summon this card (from your hand) in Defense Position. If this card is Normal or Special Summoned: Place 3 counters on this card. Cannot be destroyed by battle. At the end of the Damage Step, if this card battled: Remove 1 counter from this card. If you cannot, destroy it. You can banish this card from your Graveyard; shuffle all "B.E.S." monsters from your Graveyard into the Deck.




EARTH
9B.E.S. Blaster Cannon Core
ATK:
2500
DEF:
3000
If your opponent controls more monsters than you do, you can Special Summon this card (from your hand). You can only Special Summon "B.E.S. Blaster Cannon Core" once per turn this way. If this card is Normal or Special Summoned: Place 3 counters on this card. Cannot be destroyed by battle. At the end of the Damage Step, if this card battled: Remove 1 counter from this card. If you cannot, destroy it.




LIGHT
10B.E.S. Derringer Core
ATK:
1900
DEF:
3000
You can reveal 1 other "B.E.S." monster in your hand; Special Summon this card from your hand, then place 3 counters on this card. During the Main Phase (Quick Effect): You can remove 1 counter from this card and activate 1 of these effects; ● Add 1 "Boss Rush" or 1 Spell/Trap that mentions it, from your Deck to your hand. ● Special Summon 1 Level 9 or lower "B.E.S." monster from your GY. You can only use each effect of "B.E.S. Derringer Core" once per turn.




LIGHT
10B.E.S. Derringer Core
ATK:
1900
DEF:
3000
You can reveal 1 other "B.E.S." monster in your hand; Special Summon this card from your hand, then place 3 counters on this card. During the Main Phase (Quick Effect): You can remove 1 counter from this card and activate 1 of these effects; ● Add 1 "Boss Rush" or 1 Spell/Trap that mentions it, from your Deck to your hand. ● Special Summon 1 Level 9 or lower "B.E.S." monster from your GY. You can only use each effect of "B.E.S. Derringer Core" once per turn.




LIGHT
10B.E.S. Derringer Core
ATK:
1900
DEF:
3000
You can reveal 1 other "B.E.S." monster in your hand; Special Summon this card from your hand, then place 3 counters on this card. During the Main Phase (Quick Effect): You can remove 1 counter from this card and activate 1 of these effects; ● Add 1 "Boss Rush" or 1 Spell/Trap that mentions it, from your Deck to your hand. ● Special Summon 1 Level 9 or lower "B.E.S." monster from your GY. You can only use each effect of "B.E.S. Derringer Core" once per turn.




WIND
6B.E.S. Tetran
ATK:
1800
DEF:
2300
When this card is Normal Summoned, put 3 counters on it. This card cannot be destroyed by battle. If this card attacks or is attacked, remove 1 counter from this card at the end of the Damage Step. If you cannot, destroy it. Once per turn, you can remove 1 counter on this card to destroy 1 Spell or Trap Card on the field.




LIGHT
10Jizukiru, the Star Destroying Kaiju
ATK:
3300
DEF:
2600
You can Special Summon this card (from your hand) to your opponent's field in Attack Position, by Tributing 1 monster they control. If your opponent controls a "Kaiju" monster, you can Special Summon this card (from your hand) in Attack Position. You can only control 1 "Kaiju" monster. When a card or effect is activated that targets exactly 1 card (and no other cards) (Quick Effect): You can remove 3 Kaiju Counters from anywhere on the field; negate that effect, and if you do, you can destroy 1 card on the field.




EARTH
10Machina Citadel
ATK:
3000
DEF:
2500
Cannot be Normal Summoned/Set. Must be Special Summoned by a card effect. (Quick Effect): You can target 1 Machine monster you control; destroy that Machine monster and all monsters your opponent controls with ATK less than or equal to it. If a face-up EARTH Machine monster(s) you control, except "Machina Citadel", is destroyed by battle or card effect while this card is in your GY: You can Special Summon this card. You can only use each effect of "Machina Citadel" once per turn.




EARTH
7Machina Fortress
ATK:
2500
DEF:
1600
You can discard Machine monster(s) whose total Levels equal 8 or more, then Special Summon this card (from your hand or GY). If this card is destroyed by battle and sent to the GY: Target 1 card your opponent controls; destroy that target. Before resolving an opponent's monster effect that targets this face-up card, look at your opponent's hand and discard 1 card from their hand.




DARK
10Machina Ruinforce
ATK:
4600
DEF:
4100
Cannot be Normal Summoned/Set. Must be Special Summoned (from your GY) by banishing Machine monsters from your GY whose total Levels equal 12 or more. When your opponent activates a card or effect during the Battle Phase (Quick Effect): You can pay half your LP; negate that activation, and if you do, halve your opponent's LP. If this card is destroyed by battle or card effect: You can Special Summon up to 3 of your banished "Machina" monsters, whose total Levels equal 12 or less. You can only use each effect of "Machina Ruinforce" once per turn.




DARK
8Orbital Hydralander
ATK:
3000
DEF:
1500
Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by having 5 or more monsters in your GY, and no monsters in your GY with the same name. Once per turn (Quick Effect): You can send the top 3 cards of your Deck to the GY; destroy 1 card on the field. You must have at least 2 monsters in your GY, and no monsters in your GY with the same name, to activate and to resolve this effect.




DARK
11Super B.E.S. Metal Slave
ATK:
3100
DEF:
3100
You can send up to 5 Level 10 or lower "B.E.S." monsters with different names from your hand and/or Deck to the GY; Special Summon this card from your hand, then place counters on this card equal to the number sent to the GY to activate this effect. You can only use this effect of "Super B.E.S. Metal Slave" once per turn. Once per Chain (Quick Effect): You can remove 1 counter from this card, then target 2 face-up cards on the field, including 1 "B.E.S." monster you control; destroy them.




DARK
11Super B.E.S. Metal Slave
ATK:
3100
DEF:
3100
You can send up to 5 Level 10 or lower "B.E.S." monsters with different names from your hand and/or Deck to the GY; Special Summon this card from your hand, then place counters on this card equal to the number sent to the GY to activate this effect. You can only use this effect of "Super B.E.S. Metal Slave" once per turn. Once per Chain (Quick Effect): You can remove 1 counter from this card, then target 2 face-up cards on the field, including 1 "B.E.S." monster you control; destroy them.




DARK
11Super B.E.S. Metal Slave
ATK:
3100
DEF:
3100
You can send up to 5 Level 10 or lower "B.E.S." monsters with different names from your hand and/or Deck to the GY; Special Summon this card from your hand, then place counters on this card equal to the number sent to the GY to activate this effect. You can only use this effect of "Super B.E.S. Metal Slave" once per turn. Once per Chain (Quick Effect): You can remove 1 counter from this card, then target 2 face-up cards on the field, including 1 "B.E.S." monster you control; destroy them.




EARTH
8Therion "King" Regulus
ATK:
2800
DEF:
1600
You can only use each of the following effects of "Therion "King" Regulus" once per turn. ● You can target 1 "Therion" monster or 1 Machine monster in your GY; Special Summon this card from your hand, and if you do, equip that monster to this card. ● When your opponent activates a card or effect (Quick Effect): You can send 1 "Therion" Monster Card from your hand or face-up field to the GY; negate that effect. A "Therion" monster equipped with this card gains 700 ATK, also it can activate the 2nd effect listed above as if it were "Therion "King" Regulus".




LIGHT
4Vic Viper Type-L
ATK:
1200
DEF:
800
At the start of your Battle Phase: You can activate 1 of these effects; ● Special Summon 1 Machine monster from your hand. ● Send 1 Level 4 or lower LIGHT Machine monster from your Deck to the GY. If this card is destroyed: You can target 1 LIGHT Machine monster in your GY; Special Summon it, and if you Special Summoned a monster with 1200 or less original ATK, it gains 1200 ATK. You can only use each effect of "Vic Viper Type-L" once per turn.




Spell
FieldB.E.F. Zelos
When this card is activated: You can add 1 "Boss Rush" from your Deck to your hand. "B.E.S." monsters you control gain 500 ATK/DEF, your opponent cannot target them with card effects, also they cannot be destroyed by your opponent's card effects. Once per turn: You can Special Summon 1 "B.E.S." monster from your hand. If a "B.E.S." monster(s) is Normal or Special Summoned to your field: Place 1 counter on it.




Spell
FieldB.E.F. Zelos
When this card is activated: You can add 1 "Boss Rush" from your Deck to your hand. "B.E.S." monsters you control gain 500 ATK/DEF, your opponent cannot target them with card effects, also they cannot be destroyed by your opponent's card effects. Once per turn: You can Special Summon 1 "B.E.S." monster from your hand. If a "B.E.S." monster(s) is Normal or Special Summoned to your field: Place 1 counter on it.




Spell
QuickBook of Eclipse
Change all face-up monsters on the field to face-down Defense Position. During the End Phase of this turn, change as many face-down Defense Position monsters your opponent controls as possible to face-up Defense Position, then your opponent draws cards equal to the number of monsters changed face-up by this effect.




Spell
QuickBook of Eclipse
Change all face-up monsters on the field to face-down Defense Position. During the End Phase of this turn, change as many face-down Defense Position monsters your opponent controls as possible to face-up Defense Position, then your opponent draws cards equal to the number of monsters changed face-up by this effect.




Spell
QuickBook of Eclipse
Change all face-up monsters on the field to face-down Defense Position. During the End Phase of this turn, change as many face-down Defense Position monsters your opponent controls as possible to face-up Defense Position, then your opponent draws cards equal to the number of monsters changed face-up by this effect.




Spell
ContinuousBoss on Parade
When this card is activated: Add 1 "B.E.S." monster from your Deck to your hand. Once per turn, during your Main Phase: You can destroy 1 monster in your hand or field, and if you do, Special Summon 1 LIGHT Machine monster with 1200 ATK and 1000 or less DEF from your Deck to either field. You can banish this card from your GY; place 1 "Boss Rush" from your Deck or GY, face-up on your field. You can only activate 1 "Boss on Parade" per turn.




Spell
ContinuousBoss on Parade
When this card is activated: Add 1 "B.E.S." monster from your Deck to your hand. Once per turn, during your Main Phase: You can destroy 1 monster in your hand or field, and if you do, Special Summon 1 LIGHT Machine monster with 1200 ATK and 1000 or less DEF from your Deck to either field. You can banish this card from your GY; place 1 "Boss Rush" from your Deck or GY, face-up on your field. You can only activate 1 "Boss on Parade" per turn.




Spell
QuickForbidden Droplet
Send any number of other cards from your hand and/or field to the GY; choose that many Effect Monsters your opponent controls, and until the end of this turn, their ATK is halved, also their effects are negated. In response to this card's activation, your opponent cannot activate cards, or the effects of cards, with the same original type (Monster/Spell/Trap) as the cards sent to the GY to activate this card. You can only activate 1 "Forbidden Droplet" per turn.




Spell
QuickForbidden Droplet
Send any number of other cards from your hand and/or field to the GY; choose that many Effect Monsters your opponent controls, and until the end of this turn, their ATK is halved, also their effects are negated. In response to this card's activation, your opponent cannot activate cards, or the effects of cards, with the same original type (Monster/Spell/Trap) as the cards sent to the GY to activate this card. You can only activate 1 "Forbidden Droplet" per turn.




Spell
QuickForbidden Droplet
Send any number of other cards from your hand and/or field to the GY; choose that many Effect Monsters your opponent controls, and until the end of this turn, their ATK is halved, also their effects are negated. In response to this card's activation, your opponent cannot activate cards, or the effects of cards, with the same original type (Monster/Spell/Trap) as the cards sent to the GY to activate this card. You can only activate 1 "Forbidden Droplet" per turn.



















