Created by: YGO Mod (20517634)

Created On: 06/29/2025

Nemesis of the Underground Terror

Need 17 UR

 Rarity
Subterror Fiendess3 card
 Rarity
Subterror Guru3 card
UR Rarity
Knightmare Unicorn1 card
 Rarity
Exosister Mikailis1 card
 Rarity
Exosisters Magnifica1 card
UR Rarity
Number 106: Giant Hand1 card
 Rarity
Tornado Dragon1 card
UR Rarity
Pot of Duality2 card
UR Rarity
Terraforming1 card
 Rarity
The Hidden City3 card

Main: 20 Extra: 9

 Rarity
Subterror Fiendess
 Rarity
Subterror Fiendess
Subterror Fiendess
EARTH 1
Subterror Fiendess
  • ATK:

  • 800

  • DEF:

  • 500


When your opponent activates a card or effect (Quick Effect): You can send this card from your hand or field to the GY, then target 1 "Subterror" monster you control; negate the activation, then change the targeted monster to face-down Defense Position. You can target 1 face-up monster you control; change it to face-down Defense Position, and if you do, Special Summon 1 "Subterror" monster from your hand or GY, in face-up or face-down Defense Position. You can only use each effect of "Subterror Fiendess" once per turn.


 Rarity
Subterror Fiendess
 Rarity
Subterror Fiendess
Subterror Fiendess
EARTH 1
Subterror Fiendess
  • ATK:

  • 800

  • DEF:

  • 500


When your opponent activates a card or effect (Quick Effect): You can send this card from your hand or field to the GY, then target 1 "Subterror" monster you control; negate the activation, then change the targeted monster to face-down Defense Position. You can target 1 face-up monster you control; change it to face-down Defense Position, and if you do, Special Summon 1 "Subterror" monster from your hand or GY, in face-up or face-down Defense Position. You can only use each effect of "Subterror Fiendess" once per turn.


 Rarity
Subterror Fiendess
 Rarity
Subterror Fiendess
Subterror Fiendess
EARTH 1
Subterror Fiendess
  • ATK:

  • 800

  • DEF:

  • 500


When your opponent activates a card or effect (Quick Effect): You can send this card from your hand or field to the GY, then target 1 "Subterror" monster you control; negate the activation, then change the targeted monster to face-down Defense Position. You can target 1 face-up monster you control; change it to face-down Defense Position, and if you do, Special Summon 1 "Subterror" monster from your hand or GY, in face-up or face-down Defense Position. You can only use each effect of "Subterror Fiendess" once per turn.


R Rarity
Subterror Behemoth Ultramafus
R Rarity
Subterror Behemoth Ultramafus
Subterror Behemoth Ultramafus
EARTH 12
Subterror Behemoth Ultramafus
  • ATK:

  • 3000

  • DEF:

  • 1800


FLIP: You can change all other face-up monsters on the field to face-down Defense Position. You can only use this effect of "Subterror Behemoth Ultramafus" once per turn. When a face-up monster you control is flipped face-down, if you control no face-up monsters: You can Special Summon this card from your hand in Defense Position. Once per turn: You can change this card to face-down Defense Position.


SR Rarity
Subterror Behemoth Umastryx
SR Rarity
Subterror Behemoth Umastryx
Subterror Behemoth Umastryx
EARTH 7
Subterror Behemoth Umastryx
  • ATK:

  • 2000

  • DEF:

  • 2700


FLIP: You can target 1 monster your opponent controls; banish it. You can only use this effect of "Subterror Behemoth Umastryx" once per turn. When a face-up monster you control is flipped face-down, if you control no face-up monsters: You can Special Summon this card from your hand in Defense Position. Once per turn: You can change this card to face-down Defense Position.


 Rarity
Subterror Guru
 Rarity
Subterror Guru
Subterror Guru
EARTH 4
Subterror Guru
  • ATK:

  • 1600

  • DEF:

  • 1800


FLIP: You can add 1 "Subterror" card from your Deck to your hand, except "Subterror Guru". You can target 1 other face-up monster on the field; change that monster, also this card, to face-down Defense Position. This is a Quick Effect if you control another "Subterror" card. You can only use each effect of "Subterror Guru" once per turn.


 Rarity
Subterror Guru
 Rarity
Subterror Guru
Subterror Guru
EARTH 4
Subterror Guru
  • ATK:

  • 1600

  • DEF:

  • 1800


FLIP: You can add 1 "Subterror" card from your Deck to your hand, except "Subterror Guru". You can target 1 other face-up monster on the field; change that monster, also this card, to face-down Defense Position. This is a Quick Effect if you control another "Subterror" card. You can only use each effect of "Subterror Guru" once per turn.


 Rarity
Subterror Guru
 Rarity
Subterror Guru
Subterror Guru
EARTH 4
Subterror Guru
  • ATK:

  • 1600

  • DEF:

  • 1800


FLIP: You can add 1 "Subterror" card from your Deck to your hand, except "Subterror Guru". You can target 1 other face-up monster on the field; change that monster, also this card, to face-down Defense Position. This is a Quick Effect if you control another "Subterror" card. You can only use each effect of "Subterror Guru" once per turn.


SR Rarity
Book of Eclipse
SR Rarity
Book of Eclipse
Book of Eclipse
Spell Quick
Book 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.


    SR Rarity
    Book of Eclipse
    SR Rarity
    Book of Eclipse
    Book of Eclipse
    Spell Quick
    Book 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.


      SR Rarity
      Book of Eclipse
      SR Rarity
      Book of Eclipse
      Book of Eclipse
      Spell Quick
      Book 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.


        UR Rarity
        Pot of Duality
        UR Rarity
        Pot of Duality
        Pot of Duality
        Spell Normal
        Pot of Duality

          Excavate the top 3 cards of your Deck, add 1 of them to your hand, also, after that, shuffle the rest back into your Deck. You can only activate 1 "Pot of Duality" per turn. You cannot Special Summon during the turn you activate this card.




          Tag(s):

          UR Rarity
          Pot of Duality
          UR Rarity
          Pot of Duality
          Pot of Duality
          Spell Normal
          Pot of Duality

            Excavate the top 3 cards of your Deck, add 1 of them to your hand, also, after that, shuffle the rest back into your Deck. You can only activate 1 "Pot of Duality" per turn. You cannot Special Summon during the turn you activate this card.




            Tag(s):

            UR Rarity
            Terraforming
            UR Rarity
            Terraforming
            Terraforming
            Spell Normal
            Terraforming

              Add 1 Field Spell from your Deck to your hand.




              Tag(s):

               Rarity
              The Hidden City
               Rarity
              The Hidden City
              The Hidden City
              Spell Field
              The Hidden City

                When this card is activated: You can add 1 "Subterror" monster from your Deck to your hand. Once per turn: You can change 1 face-down Defense Position "Subterror" monster you control to face-up Attack or Defense Position. Once per turn, when an opponent's monster declares an attack: You can change 1 face-down Defense Position "Subterror" monster you control to face-up Attack or Defense Position, then you can negate the attack. You can only activate 1 "The Hidden City" per turn.


                 Rarity
                The Hidden City
                 Rarity
                The Hidden City
                The Hidden City
                Spell Field
                The Hidden City

                  When this card is activated: You can add 1 "Subterror" monster from your Deck to your hand. Once per turn: You can change 1 face-down Defense Position "Subterror" monster you control to face-up Attack or Defense Position. Once per turn, when an opponent's monster declares an attack: You can change 1 face-down Defense Position "Subterror" monster you control to face-up Attack or Defense Position, then you can negate the attack. You can only activate 1 "The Hidden City" per turn.


                   Rarity
                  The Hidden City
                   Rarity
                  The Hidden City
                  The Hidden City
                  Spell Field
                  The Hidden City

                    When this card is activated: You can add 1 "Subterror" monster from your Deck to your hand. Once per turn: You can change 1 face-down Defense Position "Subterror" monster you control to face-up Attack or Defense Position. Once per turn, when an opponent's monster declares an attack: You can change 1 face-down Defense Position "Subterror" monster you control to face-up Attack or Defense Position, then you can negate the attack. You can only activate 1 "The Hidden City" per turn.


                    SR Rarity
                    Subterror Final Battle
                    SR Rarity
                    Subterror Final Battle
                    Subterror Final Battle
                    Trap Normal
                    Subterror Final Battle

                      Activate 1 of these effects, also, after that, Set this card face-down instead of sending it to the GY. ● Change 1 Set "Subterror" monster on the field to face-up Attack or Defense Position. ● Change 1 face-up "Subterror" monster on the field to face-down Defense Position. ● ATK/DEF of 1 "Subterror" monster on the field become equal to its combined original ATK/DEF until the end of this turn. ● This turn, activated effects of "Subterror" cards cannot be negated.


                      SR Rarity
                      Subterror Final Battle
                      SR Rarity
                      Subterror Final Battle
                      Subterror Final Battle
                      Trap Normal
                      Subterror Final Battle

                        Activate 1 of these effects, also, after that, Set this card face-down instead of sending it to the GY. ● Change 1 Set "Subterror" monster on the field to face-up Attack or Defense Position. ● Change 1 face-up "Subterror" monster on the field to face-down Defense Position. ● ATK/DEF of 1 "Subterror" monster on the field become equal to its combined original ATK/DEF until the end of this turn. ● This turn, activated effects of "Subterror" cards cannot be negated.


                        SR Rarity
                        Subterror Final Battle
                        SR Rarity
                        Subterror Final Battle
                        Subterror Final Battle
                        Trap Normal
                        Subterror Final Battle

                          Activate 1 of these effects, also, after that, Set this card face-down instead of sending it to the GY. ● Change 1 Set "Subterror" monster on the field to face-up Attack or Defense Position. ● Change 1 face-up "Subterror" monster on the field to face-down Defense Position. ● ATK/DEF of 1 "Subterror" monster on the field become equal to its combined original ATK/DEF until the end of this turn. ● This turn, activated effects of "Subterror" cards cannot be negated.


                          SR Rarity
                          Knightmare Phoenix
                          SR Rarity
                          Knightmare Phoenix
                          Knightmare Phoenix
                          FIRE
                          Knightmare Phoenix
                          • ATK:

                          • 1900

                          • LINK-2

                          Link Arrow:

                          Top

                          Right


                          2 monsters with different names If this card is Link Summoned: You can discard 1 card, then target 1 Spell/Trap your opponent controls; destroy it, then, if this card was co-linked when this effect was activated, you can draw 1 card. You can only use this effect of "Knightmare Phoenix" once per turn. Co-linked monsters you control cannot be destroyed by battle.


                          UR Rarity
                          Knightmare Unicorn
                          UR Rarity
                          Knightmare Unicorn
                          Knightmare Unicorn
                          DARK
                          Knightmare Unicorn
                          • ATK:

                          • 2200

                          • LINK-3

                          Link Arrow:

                          Left

                          Right

                          Bottom


                          2+ monsters with different names If this card is Link Summoned: You can discard 1 card, then target 1 card on the field; shuffle it into the Deck, then, if this card was co-linked when this effect was activated, you can draw 1 card. You can only use this effect of "Knightmare Unicorn" once per turn. While any co-linked "Knightmare" monsters are on the field, for your normal draw in your Draw Phase, draw 1 card for each different card name among those co-linked "Knightmare" monsters, instead of drawing just 1 card.


                          SR Rarity
                          Underworld Goddess of the Closed World
                          SR Rarity
                          Underworld Goddess of the Closed World
                          Underworld Goddess of the Closed World
                          LIGHT
                          Underworld Goddess of the Closed World
                          • ATK:

                          • 3000

                          • LINK-5

                          Link Arrow:

                          Top

                          Top-Right

                          Right

                          Bottom

                          Bottom-Right


                          4+ Effect Monsters You can also use 1 monster your opponent controls as material to Link Summon this card. If this card is Link Summoned: You can negate the effects of all face-up monsters your opponent currently controls. This Link Summoned card is unaffected by your opponent's activated effects, unless they target this card. Once per turn, when your opponent activates a card or effect that Special Summons a monster(s) from the GY (Quick Effect): You can negate the activation.


                          SR Rarity
                          Castel, the Skyblaster Musketeer
                          SR Rarity
                          Castel, the Skyblaster Musketeer
                          Castel, the Skyblaster Musketeer
                          WIND
                          Castel, the Skyblaster Musketeer
                          • ATK:

                          • 2000

                          • DEF:

                          • 1500


                          2 Level 4 monsters You can detach 1 material from this card, then target 1 face-up monster on the field; change it to face-down Defense Position. You can detach 2 materials from this card, then target 1 other face-up card on the field; shuffle it into the Deck. You can only use 1 "Castel, the Skyblaster Musketeer" effect per turn, and only once that turn.


                          SR Rarity
                          Evilswarm Exciton Knight
                          SR Rarity
                          Evilswarm Exciton Knight
                          Evilswarm Exciton Knight
                          LIGHT
                          Evilswarm Exciton Knight
                          • ATK:

                          • 1900

                          • DEF:

                          • 0


                          2 Level 4 monsters Once per chain, during your Main Phase or your opponent's Battle Phase, if your opponent has more total cards in their hand and field than you do (Quick Effect): You can detach 1 material from this card; destroy all other cards on the field, also your opponent takes no further damage this turn.


                           Rarity
                          Exosister Mikailis
                           Rarity
                          Exosister Mikailis
                          Exosister Mikailis
                          LIGHT
                          Exosister Mikailis
                          • ATK:

                          • 2500

                          • DEF:

                          • 1800


                          2 Level 4 monsters Cannot be destroyed by battle with a monster Special Summoned from the GY. You can only use each of the following effects of "Exosister Mikailis" once per turn. If you control this card that was Xyz Summoned this turn by using an "Exosister" monster as material (Quick Effect): You can target 1 card your opponent controls or in their GY; banish it. You can detach 1 material from this card; add 1 "Exosister" Spell/Trap from your Deck to your hand.


                           Rarity
                          Exosisters Magnifica
                           Rarity
                          Exosisters Magnifica
                          Exosisters Magnifica
                          LIGHT
                          Exosisters Magnifica
                          • ATK:

                          • 2800

                          • DEF:

                          • 2800


                          2 Rank 4 "Exosister" Xyz Monsters Must be Xyz Summoned with the above materials. Can make a second attack during each Battle Phase. Once per turn (Quick Effect): You can detach 1 material from this card; banish 1 card your opponent controls. When your opponent activates a card or effect (Quick Effect): You can return 1 Xyz Monster you own attached to this card to your Extra Deck, then you can Special Summon that monster from your Extra Deck, by using this card you control as material. (This is treated as an Xyz Summon. Transfer this card's materials to the Summoned monster.)


                          UR Rarity
                          Number 106: Giant Hand
                          UR Rarity
                          Number 106: Giant Hand
                          Number 106: Giant Hand
                          EARTH
                          Number 106: Giant Hand
                          • ATK:

                          • 2000

                          • DEF:

                          • 2000


                          2 Level 4 monsters During either player's turn, when a monster effect is activated on your opponent's field (except during the Damage Step): You can detach 2 Xyz Materials from this card, then target 1 Effect Monster your opponent controls; while this card is face-up on the field, that Effect Monster's effects are negated, also it cannot change its battle position.


                           Rarity
                          Tornado Dragon
                           Rarity
                          Tornado Dragon
                          Tornado Dragon
                          WIND
                          Tornado Dragon
                          • ATK:

                          • 2100

                          • DEF:

                          • 2000


                          2 Level 4 monsters Once per turn (Quick Effect): You can detach 1 material from this card, then target 1 Spell/Trap on the field; destroy it.




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