Mist Valley 1-Card Negate with Avramax

This is a combo deck that uses Crystron Halqifibrax and a card to discard to achieve an ending field of Mist Valley Apex Avian, Simorgh, Bird of Sovereignty equipped with Mist Valley Thunderbird, and I:P Masquerena and Union Carrier ready to be made into Mekk-Knight Crusadia Avramax. It is similar to my other deck that ends with the same Mist Valley lock, but with a longer combo and the addition of I:P Masquerena/Avramax to the end.

The combo:

-Summon Crystron Halqifibrax (With one of the starters listed in the next section), and use its effect to summon Mecha Phantom Beast O-Lion from the Deck.

-Summon Linkross using Halqifibrax as material, and use its effect to get 2 Link Tokens.

-Summon Martial Metal Marcher using O-Lion and 1 of the Link Tokens. Use O-Lion's effect to get a Mecha Phantom Beast token, and use Marcher's effect to summon O-Lion back from the GY.

-Summon Accel Synchron using O-Lion and the Mecha Phantom Beast Token. Use its effect to send Jet Synchron to the GY and decrease its level by 1.

-Summon Herald of the Arc Light using Marcher and the remaining Link Token.

-Summon Primathmech Alembertian using Herald and Accel Synchron (which is level 4 by its effect). Use its effect to add Mathmech Nabla to your hand, and chain Herald's effect to add Advanced Ritual Art.

-Use Alembertian's effect to Tribute itself and Summon Nabla from your hand.

-Use Nabla's effect to tribute Linkross and Summon Mathmech Division from your Deck.

-Summon Gallant Granite using Nabla and Division. Use its effect to detach either Mathmech and add Block Dragon to your hand.

-Discard 1 card (not Advanced Ritual Art or Block Dragon) to Summon Jet Synchron from the GY.

-Summon Reprodocus using Gallant Granite and Jet Synchron.

-Banish Primathmech Alembertian, Mathmech Division, and Gallant Granite to summon Block Dragon to the zone Reprodocus points to.

-Use Reprodocus' effect to make Block Dragon a Winged Beast.

-Summon Simorgh, Bird of Sovereignty using Reprodocus and Block Dragon. Use Block Dragon's effect to add Gigantes and The Rock Spirit to your hand.

-Banish Block Dragon to summon Gigantes, and banish Reprodocus to summon The Rock Spirit.

-Summon Number 60: Dugares the Timeless using Gigantes and The Rock Spirit.

-Detach both materials from Dugares to summon Herald of the Arc Light from the GY.

-Summon I:P Masquerena using Dugares and Herald. Use Herald's effect to add Devotee of Nephthys to your hand.

-Use Advanced Ritual Art to send Guardragon Justicia to the GY to summon Devotee. Use Devotee's effect to summon Disciple of Nephthys from your Deck.

-Summon Union Carrier using Devotee and Disciple of Nephthys. Use its effect to equip Mist Valley Thunderbird to Simorgh.

-End your turn, and use Simorgh's effect to summon Mist Valley Apex Avian from your deck.

-During your opponent's turn, summon Mekk-Knight Crusadia Avramax using I:P Masquerena and Union Carrier (with I:P Masquerena's effect).

At this point, you should be able to negate as many of your opponent's effects as you want (with Apex Avian's effect), while Avramax's effect makes sure your opponent does not attack Thunderbird after it has benn Summoned.

Deck breakdown:

Main Deck:

Deep Sea Diva x3, Sangan x3, Righty Driver x3, Rescue Rabbit x3, Draconnet x3: These are the starters used to summon Halqifibrax.

Crusadia Arboria x1, Lefty Driver x1, Guardragon Justicia x3: These cards are summoned with the effects of the starters. Justicia is also needed in the deck for Advanced Ritual Art.

Mecha Phantom Beast O-Lion x1, Jet Synchron x2, Mathmech Nabla x1, Mathmech Division x2, Block Dragon x1, Gigantes/The Rock Spirit x2, Advanced Ritual Art x1, Devotee of Nephthys x1, Disciple of Nephthys x2, Mist Valley Thunderbird x2, Mist Valley Apex Avian x2: These cards are needed for the combo (see above). All non-Mist Valley cards that have 2 included cannot be used unless they are in the Deck. Gigantes and The Rock Spirit are completely interchangeable, this deck list uses 1 of each but 2 of 1 of them is fine. I have 2 of each Mist Valley monster because it is nice to be able to summon a second Apex Avian at the end of the opponent's turn, and despite the numerous negation effects Mist Valley Thunderbird can sometimes be removed by quick-play spells like Cosmic Cyclone and Twin Twisters.

Called by the Grave x3, Prohibition x3, Dark Ruler No More x3: These cards are used to protect the combo, Called by the Grave is mostly used to stop Ash Blossom and Effect Veiler, and Prohibition is able to prevent Ash Blossom (or Nibiru, if you also have Called by the Grave). Dark Ruler No More is a great card for removing any monster-based threats when forced to go second, and it can be discarded for Jet Synchron if you draw it going first. I plan to add Crossout Designator and cards to banish with it once it releases, but for now it is not included because this is a TCG deck.

Extra Deck:

Salamangreat Almiraj x1: This card is used with Sangan to eventually summon Crystron Halqifibrax.

Crystron Halqifibrax x2, Linkross x1, Martial Metal Marcher x1, Accel Synchron x1, Herald of the Arc Light x1, Primathmech Alembertian x1, Gallant Granite x1, Reprodocus x1, Simorgh, Bird of Sovereignty x1, Number 60: Dugares the Timeless x1, I:P Masquerena x1, Union Carrier x1: These cards are all part of the combo. Halqifibrax is at 2 in case you run into an Ash Blossom with nothing to counter it.

Side Deck:

Ash Blossom & Joyous Spring x3, Nibiru the Primal Being x3, Infinite Impermanence x3, Lightning Storm x3, Effect Veiler x2, Red Reboot x1: These cards are all used to stop combo decks that get to go first games 2 or 3, except Red Reboot which is a counter to Impermanence or whatever other traps my opponent may have. The side deck cards are subject to change based on what seems to frequently threaten the combo.