Level 11 Archetype: HELLFIRE #

[Lunar Origins]

Concerto of Destruction - HELLFIRE #666
[ FIRE / Level 12 ]
[ Machine / Effect ]
Cannot be Normal Summoned or Set. Can only be Summoned by the effect of a "HELLFIRE" card. Each time a monster is Summoned: Destroy 1 card on the field. Each time a card is Set: Destroy 1 Set card on the field. You cannot declare an attack during the turn a card, except this card, was Summoned. You can Tribute 3 monsters (from your hand or field): Switch the ATK and DEF of all monsters on the field and switch every monster on the field to face-up ATK position.
[ ATK: 0 / DEF: 4000 ]

Raven Acoustic - HELLFIRE #37
[ FIRE / Level 11 ]
[ Machine / Effect ]
Cannot be Normal Summoned or Set. Can only be Special Summoned (from your hand) by banishing 1 Normal Spell Card from your Graveyard.
[ ATK: 0 / DEF: 0 ]

Tortoise Brass - HELLFIRE #6
[ FIRE / Level 11 ]
[ Machine / Effect ]
If you control a "HELLFIRE" monster: You can Special Summon this card (from your hand). When this card is Summoned: Add 1 "HELLFIRE" Spell Card from your Deck to your hand.
[ ATK: 0 / DEF: 0 ]

Leopard String - HELLFIRE #3
[ FIRE / Level 11 ]
[ Machine / Effect ]
When this card is Special Summoned: You can Special Summon 1 Level 11 "HELLFIRE" monster from your Deck, except "Leopard String - HELLFIRE #3".
[ ATK: 0 / DEF: 0 ]

HELLFIRE Art - Perfect Circle Ensemble
[ Spell ]
Discard 1 card: Special Summon 1 Level 11 "HELLFIRE" monster from your hand or Graveyard.

HELLFIRE Art - Perfect Prevention Play
[ Spell / Continuous ]
Your opponent cannot chain cards to the activation or Summon of "HELLFIRE" cards.

HELLFIRE Art - Final Sonata of Destruction
[ Spell / Quickplay ]
If the total Level of monsters on the field is more than 55: Tribute all monsters on the field; You can Special Summon 1 "Concerto of Destruction - HELLFIRE #666" from your hand, Deck, or Graveyard. You can banish this card in your Graveyard: Add 1 "HELLFIRE Art - Final Ritual of Destruction" from your Deck or Graveyard to your hand.

[HSektor]

Woah, that would be a hell of a control deck. I like it.