Archfiend Deck Breakdown

EARTH 5

You can discard 1 card; Special Summon this card from your hand in Defense Position, then you can Special Summon 1 "Fire Ant Ascator" from your hand or Deck. You cannot Special Summon monsters from the Extra Deck the turn you activate this effect, except Synchro Monsters. You can only use this effect of "Ascator, Dawnwalker" once per turn.

DARK 4

If this card is in your hand or GY: You can send 1 other card from your hand or field to the GY; Special Summon this card, also you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except DARK Dragon Synchro Monsters. You can target 1 face-up monster you control that has a Level; send 1 Fiend Tuner from your hand or Deck to the GY, and if you do, increase or decrease that monster's Level by 1. You can only use each effect of "Bone Archfiend" once per turn.

DARK 5

If there is a card in a Field Zone, you can Special Summon this card (from your hand). You can only Special Summon "Earthbound Prisoner Stone Sweeper" once per turn this way. You can discard this card; add 1 Level 3 or lower Fiend Tuner from your Deck to your hand, also you cannot Special Summon from the Extra Deck for the rest of this turn, except Fusion or Synchro Monsters. You can only use this effect of "Earthbound Prisoner Stone Sweeper" once per turn.

FIRE 3

During the Main Phase, if you control a Fiend Tuner, or your opponent controls a Special Summoned monster (Quick Effect): You can Special Summon this card from your hand. If this card is Special Summoned: You can inflict 400 damage to your opponent for each FIRE monster you control with different names. If this card is sent to the GY as Synchro Material: You can send 1 Normal Trap from your Deck to the GY. You can only use each effect of "Red Lotus King, Flame Crime" once per turn.

EARTH 5

You can discard 1 card; Special Summon this card from your hand in Defense Position, then you can Special Summon 1 "Supay" from your hand or Deck. You cannot Special Summon monsters from the Extra Deck the turn you activate this effect, except Synchro Monsters. You can only use this effect of "Supay, Duskwalker" once per turn.

DARK 2

If you control no monsters: You can Special Summon this card from your hand. If the only other monster you control is exactly 1 DARK Dragon Synchro Monster: You can Special Summon up to 2 "Resonator" monsters from your hand or Deck, except "Crimson Resonator". You can only use each effect of "Crimson Resonator" once per turn. You cannot Special Summon monsters from the Extra Deck, except DARK Dragon Synchro Monsters, the turn you activate either of this card's effects.

LIGHT 1

During your opponent's Main Phase (Quick Effect): You can send this card from your hand to the GY, then target 1 Effect Monster your opponent controls; negate the effects of that face-up monster your opponent controls, until the end of this turn.

EARTH 3

When this card is destroyed by battle and sent to the GY: You can target 1 Level 5 monster in your GY; Special Summon that target, but its effects are negated, also send it to the GY during the End Phase of this turn.

LIGHT 3

When a monster on the field activates its effect, or when a Spell/Trap that is already face-up on the field activates its effect (Quick Effect): You can send this card from your hand or field to the GY; destroy that card on the field. You can only use this effect of "Ghost Ogre & Snow Rabbit" once per turn.

EARTH 4

If this card is in your hand: You can target 1 Synchro Monster you control or in your GY; banish it, and if you do, Special Summon this card. If this card is in your GY: You can target 1 Synchro Monster you control or in your GY; banish it, and if you do, add this card to your hand. You can only use each effect of "Obsessive Uvualoop" once per turn.

FIRE 3

If this card is Normal or Special Summoned: You can add 1 Level 4 or lower Fiend monster from your Deck to your hand, except "Soul Resonator", also you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except DARK Synchro Monsters. If a card(s) you control would be destroyed by card effect, while you control "Red Dragon Archfiend" or a Synchro Monster that mentions it, you can banish this card from your GY instead. You can only use each effect of "Soul Resonator" once per turn.

EARTH 1

When this card is sent from the field to the GY by card effect: You can Special Summon 1 "Oracle of the Sun" from your Deck, and if you do, double its ATK, also return it to the hand during the End Phase of this turn.

DARK 1

If a Synchro Monster is on the field, you can Special Summon this card (from your hand). You can only Special Summon "Synkron Resonator" once per turn this way. If this card is sent from the field to the Graveyard: You can target 1 "Resonator" monster in your Graveyard, except "Synkron Resonator"; add it to your hand.

DARK 2

If a Level 5 or higher DARK monster is on the field, you can Special Summon this card (from your hand). You can only Special Summon "Vision Resonator" once per turn this way. If this card is sent to the GY: You can add 1 Spell/Trap that mentions "Red Dragon Archfiend" from your Deck to your hand. You can only use this effect of "Vision Resonator" once per turn.

Spell Quick

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 Continuous

During your Main Phase: You can add 1 "Red Dragon Archfiend" or 1 card that mentions it from your Deck or GY to your hand, except "Crimson Gaia". When your "Red Dragon Archfiend" declares an attack: You can change all monsters your opponent controls to face-down Defense Position. If a monster(s) on the field is destroyed by battle or card effect: You can Special Summon 1 "Red Dragon Archfiend" from your GY. You can only use each effect of "Crimson Gaia" once per turn.

Spell Normal

Add 1 "Resonator" monster from your Deck to your hand.

Spell Continuous

You can discard 1 card; send 1 Fiend monster from your Deck to the GY. You can send this face-up card from your Spell & Trap Zone to the GY; send "Infernoid" monsters with different names from your hand and/or Deck to the GY, up to the number of monsters your opponent controls that were Special Summoned from the Extra Deck. You can only use 1 "Void Apocalypse" effect per turn, and only once that turn.

Trap Normal

If you control a Level 8 or higher Synchro Monster: Banish all monsters on the field, except the monster(s) with the highest Level, also the remaining face-up monsters on the field are unaffected by other card effects, except their own, until the end of this turn. If a DARK Dragon Synchro Monster is Synchro Summoned to your field while this card is in your GY: You can add this card to your hand. You can only use this effect of "Red Reign" once per turn.

Trap Continuous

When your opponent activates a card or effect while you control "Red Dragon Archfiend" or a Synchro Monster that mentions it: You can target 1 card on the field; destroy it. You can target 1 of your banished DARK Dragon Synchro Monsters; Special Summon it. You can only use each effect of "Red Zone" once per turn.

DARK 10

1 Tuner + 1+ non-Tuner Dragon monsters You can target 1 banished LIGHT or DARK monster; Special Summon it to your field. When your opponent activates a monster effect (Quick Effect): You can target 1 banished card; shuffle it into the Deck, then if you shuffled it into your Deck, destroy that monster, or if you shuffled it into your opponent's Deck, negate that activated effect. You can only use each effect of "Bystial Dis Pater" once per turn.

DARK 8

1 Tuner + 1+ non-Tuner monsters If this card is Synchro Summoned: You can excavate the top 5 cards of your Deck, and if you do, you can add 1 excavated LIGHT or DARK monster to your hand, also send the remaining cards to the GY. You can banish 1 LIGHT and 1 DARK monster from your hand and/or GY, except this card; Special Summon this card from your GY, but banish it when it leaves the field. You can only use each effect of "Chaos Ruler, the Chaotic Magical Dragon" once per turn.

DARK 9

1 Tuner + 1 non-Tuner DARK Dragon Synchro Monster (Quick Effect): You can target 1 face-up card your opponent controls; negate its effects until the end of this turn. When this card inflicts battle damage to your opponent: You can target 1 Tuner in your GY; Special Summon it in Defense Position. You can only use each effect of "Hot Red Dragon Archfiend Abyss" once per turn.

DARK 10

1 Tuner + 1 non-Tuner DARK Dragon Synchro Monster You can Tribute 1 monster, then target 1 "Red Dragon Archfiend" monster in your GY; Special Summon it. When this card inflicts battle damage to your opponent: You can Special Summon 2 Tuners with the same Level (1 from your Deck and 1 from your GY) in Defense Position. You can only use each effect of "Hot Red Dragon Archfiend Bane" once per turn.

DARK 12

2 Tuners + 1 non-Tuner DARK Dragon Synchro Monster When this card is Synchro Summoned: You can activate this effect; for the rest of this turn, your opponent cannot activate cards, also cards your opponent controls cannot activate their effects. Your opponent cannot activate cards or effects in response to this effect's activation. If this card destroys a monster by battle: Inflict damage to your opponent equal to that monster's original ATK. If this card in its owner's possession is destroyed by an opponent's card: You can target 1 Level 8 or lower DARK Dragon Synchro Monster in your GY; Special Summon it.

DARK 7

1 Tuner + 1+ non-Tuner monsters If this card is Synchro Summoned: You can target 1 card on the field; destroy it. If this card on the field is destroyed: You can target 1 face-up monster on the field; that monster cannot attack until the end of your opponent's turn. You can only use each effect of "Kuibelt the Blade Dragon" once per turn.

DARK 8

1 Tuner + 1 or more non-Tuner monsters After damage calculation, if this card attacks a Defense Position monster your opponent controls: Destroy all Defense Position monsters your opponent controls. During your End Phase: Destroy all other monsters you control that did not declare an attack this turn. This card must be face-up on the field to activate and to resolve this effect.

DARK 6

1 Fiend Tuner + 1+ non-Tuner monsters When this card is Synchro Summoned: You can target 1 "Resonator" monster in your GY; Special Summon it. You cannot Special Summon monsters from the Extra Deck the turn you activate this effect, except DARK Dragon Synchro Monsters. During your Main Phase, except the turn this card was sent to the GY: You can banish this card from your GY, then target 2 Level 1 "Resonator" monsters in your GY; Special Summon both.

DARK 12

3 Tuners + 1+ non-Tuner Synchro Monsters Must first be Synchro Summoned. Gains 500 ATK for each Tuner in your GY. Cannot be destroyed by your opponent's card effects. Once per turn, when your opponent's monster effect is activated, or when an opponent's monster declares an attack (Quick Effect): You can activate this effect; banish this card, also banish all cards your opponent controls. Once per turn, during your next End Phase after this card was banished by its own effect: Special Summon this banished card.

DARK 8

1 Tuner + 1+ non-Tuner DARK monsters This card's name becomes "Red Dragon Archfiend" while on the field or in the GY. If this card is sent from the Monster Zone to the GY: You can Special Summon 1 "Red Dragon Archfiend" from your Extra Deck (this is treated as a Synchro Summon), then, if this card was sent to the GY as Synchro Material for a DARK Dragon Synchro Monster, you can destroy all Attack Position monsters your opponent controls. You can only use this effect of "Scarred Dragon Archfiend" once per turn.