DARK 6

You can send 1 Level 5 or higher Normal Monster from your hand or Deck to the GY; Special Summon this card from your hand, then increase its Level by 1. During your Main Phase, except the turn this card was sent to the GY: You can banish this card from your GY; add 1 "Red-Eyes Fusion" from your Deck or GY to your hand. You can only use each effect of "Red-Eyes Black Meteor Dragon" once per turn.

DARK 10

You can Special Summon this card (from your hand) by banishing 1 face-up Dragon monster you control. You can only Special Summon "Red-Eyes Darkness Metal Dragon" once per turn this way. During your Main Phase: You can Special Summon 1 Dragon monster from your hand or GY, except "Red-Eyes Darkness Metal Dragon". You can only use this effect of "Red-Eyes Darkness Metal Dragon" once per turn.

WIND 4

During your End Phase, if you did not Normal Summon/Set a monster this turn: You can banish this card from your Graveyard; Special Summon 1 "Red-Eyes" monster from your Graveyard, except "Red-Eyes B. Chick".

EARTH 1

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.

EARTH 4

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.

DARK 8

"Dark Magician" + "Red-Eyes Black Dragon" or 1 Dragon Effect Monster Cannot be destroyed by card effects. Neither player can target this card with card effects. During your Main Phase: You can destroy 1 monster your opponent controls, and if you do, inflict damage to your opponent equal to that monster's original ATK. You can use this effect a number of times per turn up to the number of Normal Monsters used as Fusion Material for this card. Once per turn, when a card or effect is activated (Quick Effect): You can discard 1 card; negate the activation, and if you do, destroy that card, and if you do that, this card gains 1000 ATK.

DARK

1 Level 4 or lower Dragon monster You cannot Special Summon monsters, except Dragon monsters. During your Main Phase: You can target 1 of your Dragon monsters that is banished or in your GY; Special Summon it to your zone that 2 or more Link Monsters point to. You can only use this effect of "Guardragon Pisty" once per turn. You can only Special Summon "Guardragon Pisty(s)" once per turn.

LIGHT

2 Dragon monsters Once per opponent's turn, if this card is in the Extra Monster Zone (Quick Effect): You can Tribute 1 monster from your hand or field; return 1 face-up card on the field to the hand. If this card is Tributed: Special Summon 1 Dragon monster from your hand or Deck, but make its ATK/DEF 0. You can only use this effect of "Hieratic Seal of the Heavenly Spheres" once per turn.

FIRE

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.

DARK

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.

LIGHT

2 Effect Monsters You can target 1 face-up monster your opponent controls this card points to; this turn, if you Link Summon a Link-5 monster using this card you control, you can also use that monster your opponent controls as material. You can only use this effect of "Moon of the Closed Heaven" once per turn.

EARTH

2 Flip monsters Gains ATK equal to the combined original Levels of the "Subterror" monsters used for its Link Summon x 100. During your Main Phase: You can send 1 Flip monster from your Deck to the GY, and if you do, Special Summon 1 monster from your hand in face-down Defense Position to your zone this card points to. You can only use this effect of "Subterror Behemoth Fiendess" once per turn. Once per turn, if a monster this card points to is flipped face-up: Add 1 Flip monster from your Deck or GY to your hand.

DARK 7

''A ferocious dragon with a deadly attack.''

FIRE 8

You can Ritual Summon this card with "Red-Eyes Transmigration". Once per turn, during either player's turn, when a card or effect is activated, except "Lord of the Red": You can target 1 monster on the field; destroy it. Once per turn, during either player's turn, when a card or effect is activated, except "Lord of the Red": You can target 1 Spell/Trap Card on the field; destroy it.

DARK

2 Level 8 monsters You can only Special Summon "Dingirsu, the Orcust of the Evening Star(s)" once per turn. You can also Xyz Summon this card by using an "Orcust" Link Monster you control as material. If a card(s) you control would be destroyed by battle or card effect, you can detach 1 material from this card instead. If this card is Special Summoned: You can activate 1 of these effects; ● Send 1 card your opponent controls to the GY. ● Attach 1 of your banished Machine monsters to this card as material.

DARK

2 Level 12 monsters During the turn, or turn after, your opponent Special Summoned 2 or more monsters from the Extra Deck, you can also Xyz Summon this card by using 1 monster you control with the highest ATK (your choice, if tied). (Transfer its materials to this card.) If you do, you cannot Normal or Special Summon monsters for the rest of this turn. While this Xyz Summoned monster is on the field, neither player can activate the effects of monsters with 3000 or more ATK. Once per turn: You can detach 1 material from this card; return 1 monster from the field to the hand.

Spell Quick

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 Normal

Send 1 "Red-Eyes" monster from your hand or Deck to the Graveyard; add 1 "Red-Eyes" Spell/Trap Card from your Deck to your hand, except "Red-Eyes Insight". You can only activate 1 "Red-Eyes Insight" per turn.

Spell Normal

This card is used to Ritual Summon "Lord of the Red". You must also Tribute monsters from your hand or field, and/or banish "Red-Eyes" monsters from your Graveyard, except "Red-Eyes B. Chick", whose total Levels equal 8 or more.

Spell Field

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.

Trap Normal

Target 1 "Red-Eyes" monster you control; equip this card to it. It can make up to 2 attacks on monsters during each Battle Phase. You can send this Equip Card to the GY, then target 1 Effect Monster on the field; equip that target to the monster this card was equipped to, and if you do, while a monster is equipped to it by this effect, its ATK/DEF become equal to the original ATK/DEF of that equipped monster.

Trap Normal

Target 1 "Red-Eyes" monster in your GY; Special Summon it.

Trap Normal

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.

DARK 6

You can send 1 Level 5 or higher Normal Monster from your hand or Deck to the GY; Special Summon this card from your hand, then increase its Level by 1. During your Main Phase, except the turn this card was sent to the GY: You can banish this card from your GY; add 1 "Red-Eyes Fusion" from your Deck or GY to your hand. You can only use each effect of "Red-Eyes Black Meteor Dragon" once per turn.

DARK 10

You can Special Summon this card (from your hand) by banishing 1 face-up Dragon monster you control. You can only Special Summon "Red-Eyes Darkness Metal Dragon" once per turn this way. During your Main Phase: You can Special Summon 1 Dragon monster from your hand or GY, except "Red-Eyes Darkness Metal Dragon". You can only use this effect of "Red-Eyes Darkness Metal Dragon" once per turn.

WIND 4

During your End Phase, if you did not Normal Summon/Set a monster this turn: You can banish this card from your Graveyard; Special Summon 1 "Red-Eyes" monster from your Graveyard, except "Red-Eyes B. Chick".

DARK 8

"Dark Magician" + "Red-Eyes Black Dragon" or 1 Dragon Effect Monster Cannot be destroyed by card effects. Neither player can target this card with card effects. During your Main Phase: You can destroy 1 monster your opponent controls, and if you do, inflict damage to your opponent equal to that monster's original ATK. You can use this effect a number of times per turn up to the number of Normal Monsters used as Fusion Material for this card. Once per turn, when a card or effect is activated (Quick Effect): You can discard 1 card; negate the activation, and if you do, destroy that card, and if you do that, this card gains 1000 ATK.

LIGHT

2 Dragon monsters Once per opponent's turn, if this card is in the Extra Monster Zone (Quick Effect): You can Tribute 1 monster from your hand or field; return 1 face-up card on the field to the hand. If this card is Tributed: Special Summon 1 Dragon monster from your hand or Deck, but make its ATK/DEF 0. You can only use this effect of "Hieratic Seal of the Heavenly Spheres" once per turn.

DARK

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.

DARK 7

''A ferocious dragon with a deadly attack.''

FIRE 8

You can Ritual Summon this card with "Red-Eyes Transmigration". Once per turn, during either player's turn, when a card or effect is activated, except "Lord of the Red": You can target 1 monster on the field; destroy it. Once per turn, during either player's turn, when a card or effect is activated, except "Lord of the Red": You can target 1 Spell/Trap Card on the field; destroy it.

DARK

2 Level 8 monsters You can only Special Summon "Dingirsu, the Orcust of the Evening Star(s)" once per turn. You can also Xyz Summon this card by using an "Orcust" Link Monster you control as material. If a card(s) you control would be destroyed by battle or card effect, you can detach 1 material from this card instead. If this card is Special Summoned: You can activate 1 of these effects; ● Send 1 card your opponent controls to the GY. ● Attach 1 of your banished Machine monsters to this card as material.

DARK

2 Level 12 monsters During the turn, or turn after, your opponent Special Summoned 2 or more monsters from the Extra Deck, you can also Xyz Summon this card by using 1 monster you control with the highest ATK (your choice, if tied). (Transfer its materials to this card.) If you do, you cannot Normal or Special Summon monsters for the rest of this turn. While this Xyz Summoned monster is on the field, neither player can activate the effects of monsters with 3000 or more ATK. Once per turn: You can detach 1 material from this card; return 1 monster from the field to the hand.

Spell Quick

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 Normal

This card is used to Ritual Summon "Lord of the Red". You must also Tribute monsters from your hand or field, and/or banish "Red-Eyes" monsters from your Graveyard, except "Red-Eyes B. Chick", whose total Levels equal 8 or more.

Spell Field

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.

Trap Normal

Target 1 "Red-Eyes" monster you control; equip this card to it. It can make up to 2 attacks on monsters during each Battle Phase. You can send this Equip Card to the GY, then target 1 Effect Monster on the field; equip that target to the monster this card was equipped to, and if you do, while a monster is equipped to it by this effect, its ATK/DEF become equal to the original ATK/DEF of that equipped monster.