Ultimate Engine of Destruction (Blue-Eyes, Buster Blader, Primite, Metalmorph)

The Blue-Eyes White Dragon...does it really need an introduction? The answer is no, but here's one anyway. The ace-monster of Seto Kaiba from the Duel Monsters era of the anime has received a frankly insane amount of support over the years, allowing its associated deck to be meta-viable several times throughout its lifespan, and although it has currently fallen off the current meta, I believe it has the potential to make a 2nd/3rd/4th comeback even with the explosive power of today's strongest decks lined up against it. Would this build be the key to its victory? I'll let you decide.

Now, I know you're looking at a 50 card Main Deck and thinking that this brew doesn't have a chance, but hear me out and let me explain my madness before you judge it too harshly. I promise there's a method to it all. Let's start with a quick breakdown of the supplementary engines involved in this build, those being Primite, Buster Blader, Metalmorph/Bystial, and Crimson Dragon.

1. Primite: Unsurprisingly, an engine that was designed to support Normal Monsters is a no-brainer for a deck that revolves around the strongest Normal Monster in the game, and yet, the synergy between the two decks is so complete that you'd almost think that Konami designed one with the other in mind.
   1. Ether Beryl and Lordly Lode serve functionally the same purpose in the Deck, one searching the other which then searches the other cards in the engine. That said, it's arguable to say that seeing Ether Beryl in your opening hand is slightly better, given that if the search effect of either is negated or your opponent hits you with a Droll & Lock Bird you can still use Ether Beryl to Link Summon into the Spirit with Eyes of Blue and continue on with your combo.
   2. Drillbeam is undoubtedly the best search target once the engine's been established, allowing you to negate and banish any card on the field so long as you have a Normal Monster or a Primite monster in your hand/on the field...and given how easy this is to accomplish if you have True Light on the field, which in and of itself is exceedingly easy for the Deck just by going through normal combos, it's almost a guarantee that Drillbeam will be live once it's in your grip.
   3. Although not quite as strong as Drillbeam, Roar is nonetheless a good option to search off Ether Beryl/Lordly Lode, allowing you to summon a Blue-Eyes White Dragon in situations where you need the extra body as well as disrupting your opponent with its GY effect.
2. Buster Blader: Unlike Primite, Buster Blader doesn't seem to have been custom-made to work alongside Blue-Eyes, and yet, there are enough incidental synergies between the two archetypes that they do work well together.
   1. Because Buster Whelp is a Level 1 Light Tuner Dragon monster, it can be searched with the Normal Summon efffect of Sage, it can be extra Normal Summoned by the effect of Mausoleum, and it can be used as material to summon Spirit with Eyes of Blue, Blue-Eyes Spirit Dragon and Hieratic Seal of Heavenly Spheres, the latter two of which you ideally want on your final end board.
   2. Speaking of the end board, the engine's main power duo, Buster Dragon and the Dragon Destroyer Swordsman, lock your opponent out of activating their monster effects on field and prevent all but Link Monsters from attacking, and can both easily be summoned off a single activation of Prologue, give or take a few steps.
      1. It should also be noted that, because you technically only require Prologue to get these two monsters out since neither Destruction Sword Memories or Dragon Destroyer Swordsman require Destruction Sword monsters as material, seeing Prologue in your opening hand is hardly an issue, as Blue-Eyes is more than capable of filling the GY with Dragons to use as Fusion material for DSM.
3. Metalmorph/Bystial: Unlike Primite and Buster Blader, the Metalmorph engine admittedly doesn't have as many synergies with Blue-Eyes; that said, there are enough to make it viable in the Deck, especially when it's coupled with the small Bystial package included in the list.
   1. Because Fullmetal Dragon requires a tribute of a Level 5 or higher Dragon, Blue-Eyes is able to fulfill this requirement, as are the Bystials, and adding it to the end board gives you an omni-negate that can't be targeted or destroyed by Monster or Spell effects.
      1. It should also be noted that, because Fullmetal Dragon sets Max Metalmorph directly from the Deck, it plays around both Ash Blossom and Droll & Lock Bird, which is a nice bonus.
   2. Because the Bystials require Lights/Darks in the GY to banish, Blue-Eyes is also able to fulfill this requirement easily, as is Buster Blader by-the-by, if your opponent isn't playing a Light/Dark focused strategy, and becasue they are Dragons, they can also be used as material to summon Hieratic Seals.
4. Crimson Dragon: Because of the ease of which Blue-Eyes can get Level 1 Tuners and Level 8 Dragons on the field, it is exceedingly easy to get two Blue-Eyes Spirit Dragons on the field, meaning that it's also exceedingly easy to set up Crimson Dragon and the associated powerhouses it entails.
   1. The main target for Crimson Dragon is Sifr Divine Dragon, using Ultimate Spirit Dragon as its target. Getting these two Dragons out represents an omni-negate and a Monster negate, and because Sifr Divine Dragon protects your cards from destruction once each, it prevents Ultimate Spirit from being destroyed by regular Spirit Dragon's effect during the End Phase and can protect your True Light from being destroyed on your opponent's turn, thus preventing a potential board wipe.
   2. As a secondardy target, we have Abyss Dragon, which can use either Spirit Dragon or Lightstorm Dragon as its targets, and also represents and omni-negate on board.
      1. As a side-note, you can also just naturally summon Abyss Dragon if you have Buster Dragon on field alongside one of the Deck's many Level 1 Tuners, which is a nice additional bonus for its inclusion.

With all of that out of the way, let's take a moment to talk about the Deck's game plan.

1. As is, the Deck as three viable Normal Summons, those being Sage, Buster Whelp, and Ether Beryl.
   1. Because all three of these can be linked off for Spirit with Eyes of Blue, seeing any combination of two of these in your opening hand grants you access to Spirit Dragon at minimum, as well as opening up either full Buster Blader or Primite combos.
      1. As noted above, it isn't technically necessary to access the Buster Blader portion of the Deck if you have Prologue in your opening hand, meaning that in a "Best of All Worlds" situation, you would have that plus Sage and Ether Beryl in your opening hand to gain access to all three engines at the same time.
      2. It should also be noted that, of the three, Sage is the best Normal Summon, as it grants you access to all of the Deck's other Tuners, all of which have powerful effects in their own right.
2. Alongside these, the Deck has three primary extenders that you either want in your opening hand or will need to search through your normal combos, those being Maiden, Wishes, and Kaibaman.
   1. Without a doubt, Maiden is the card you want to get access to as quickly as possible, making it the premiere target for Sage's search effect if you don't find it in your opening hand. Being able to place True Light on your field is paramount to the Deck's strategy, both as a way to search the Deck's powerfull Spell/Traps and to get a Blue-Eyes on field, while its Special Summon effects grant you access to both Syncrho and Link plays.
   2. Much like Maiden, Wishes is a card you want to see as soon as possible, either in your opening hand or by searching it with True Light, as it is another card that grants you access to all of the Deck's myriad Tuners, while its GY effect will give your Blue-Eyes monsters targeting protection via Neo Ultimate Dragon.
   3. Admittedly, Kaibaman isn't as crucial to the Deck as the other two extenders, hence why there's only a single copy in the list. That said, in hands where you already have access to Maiden, Kaibaman is a phenomenal search target off of Sage, as it can easily set up the Crimson Dragon line by getting an addition Blue-Eyes on the field and its GY effect can give you easy access to Jet Dragon if you don't already have it.
      1. The one downside of Kaibaman is that, being a Warrior instead of a Spellcaster, it cannot be used to Summon Spirit with Eyes of Blue; however, in scenarios where you have access to any of the Deck's other Tuners, this is hardly an issue, as you can simply use Kaibaman and the Blue-Eyes it summons to make Spirit Dragon and use your other Tuners for the rest of the combo.
3. Unfortunately, because your endboard is dependent on which parts of the Deck you see in your opening hand, it's difficult to definitively say what it should look like. At minimum...and if you don't get interupted...you should have a Spirit Dragon and a Hieratic Seal on field, alongside whatever engine parts you opened/searched throughout the combo. That said, the ceiling for this Deck is considerably higher, and with the right combination of cards in hand, you can end on a board that will leave your opponent with scant options if you go uninterupted. That combination: Sage, Prologue, Fullmetal Dragon, and Ether Beryl/Lordly Lode. Here's how the combo goes:
   1. Normal Summon Ether Beryl/activate Lordly Lode; search whichever one you didn't open.
   2. Activate Lordly Lode/Normal Summon Ether Beryl; search Drillbeam.
   3. Link off Ether Beryl for Spirit with Eyes of Blue; search Mausoleum.
   4. Activate Mausoleum; activate effect to extra Normal Summon Sage; search Maiden.
   5. Discard Maiden to place True Light.
   6. Activate Mausoleum effect, target Sage/Spirit and send Blue-Eyes to the GY.
   7. Tribute Spirit to Summon Blue-Eyes from the GY; Special Summon Maiden from the GY.
   8. Activate True Light, placing Wishes from Deck.
   9. Activate Wishes, discarding the 5th card in your hand; add Roar and add either Effect Veiler for insulation or Sage/Kaibaman for follow-up.
   10. Banish Wishes from the GY, equipping Blue-Eyes with Neo Ultimate Dragon.
   11. Activate Roar, summoning Jet from Deck.
   12. Synchro Summon two Spirit Dragons, using all four monsters on field; tribute both Spirit Dragons, summoning Ultimate Spirit and Crimson Dragon; search Synchro Rumble with Crimson Dragon.
   13. Activate Crimson Dragon, targeting Ultimate Spirit, and Summon Sifr Dragon.
   14. Reveal Fullmetal Dragon to set Max Metalmoprh.
   15. Set both Prologue and Drillbeam and pass turn; during the End Phase, Sifr Dragon protects Ultimate Spirit from being destroyed.
   16. During your opponent's Draw Phase, activate both Prologue to Summon Buster Dragon by sending Buster Blader and Destruction Sword Memories and True Light to Summon Blue-Eyes from the GY; before leaving the Draw Phase, activate Destruction Sword Memories, banishing it, Buster Blader, and Spirit with Eyes of Blue to Summon Dragon Destroyer Swordsman.
       1. With all this on board, you have two omni-negates, one from Ultimate Spirit and one from Drillbeam; you have a monster negate from Sifr Dragon that stops any in hand effects, as well as built in protection for your True Light; you're negating all your opponent's on-field monster effects with Buster Blader/Buster Dragon, as well as putting everything they summon that isn't a Link monster to Defense; you have targeting protection for your Blue-Eyes, both from True Light and Neo Ultimate Dragon, and targeting protection for your Ultimate Spirit with Neo Ultimate Dragon; and if/when you've used Drillbeam, you can then use the Blue-Eyes on field to activate Max Metalmorph and Summon Fullmetal Dragon for another omni-negate.

With all that said, the Deck isn't without its weaknessess.

1. Droll & Lock Bird: Although both Maiden and Fullmetal Dragon are able to play around this card, the Deck still wants to do a lot of searching between Sage, Buster Whelp, Ether Beryl/Lordly Lode, and Wishes, meaning seeing this card from your opponent will likely hamstring your combos; the recent semi-limit of the card might help with this issue slightly, and it's too early in the format to know if Droll will still be widespread, though chances are high that it likely will be.
2. The Mulcharmies (mostly Fuwalos): Because the Deck wants to Special Summon a lot, seeing a Mulcharmy dropped on you can be devastating, Fuwalos in particular though Meowls can be annoying too...Purulia isn't much of a hassle, since the Deck doesn't really Summon from hand besides the Bystials.
3. As stated above, the potential output of the Deck is almost entirely dependent on what halves of the Deck you see in your opening hand; likewise, although it's less likely to happen now after the introduction of Maiden, Wishes, and Spirit with Eyes of Blue, it is still possible for the Deck to live up to the "Brick-Eyes" moniker that plagued it for so many years before the latest structure deck, as there are a number of cards you almost never want to see in your opening hand outside of a very few, niche situations (i.e. Buster Blader, Destruction Sword Memories, Ultimate Fusion, Syncrho Rumble).

All in all, the Deck is a lot of fun to play, and as I stated above, I think it could potentially still compete with the current meta if given the chance.