Crystron SSA: deck recipe [Post-Banlist]

The Mermail Engine consists of a bunch of Mermail monsters with search effects. The goal is to get Abysspike onboard and use Abysspike's effect to search your Crystrons. Aside from that, they also function fairly well at thinning the Deck and loading Crystrons to the graveyard.

Aside from loading a WATER monster into the graveyard and searching Abysspike, Abyssteus also has synergy with the SSA components of the deck. Firstly, being a high-level WATER monster, gives Abyssteus access to SSA's removal effect.

You can Special Summon Abyssteus, then search and Normal Summon Abysspike. Now that you have two WATER monsters onboard, you can send them both to the graveyard to summon Citadel Whale and fetch SSA.

Summoning Aysspike's search effect is the main reason to run this Mermail Engine. This search effect lets you fetch Thystvern or any Crystron Tuner. If you have Abyssteus onhand, you can immediately discard the searched Thystvern and use its search effect.

Special Summon Abysspike when Abysslinde is destroyed.

Abyss-sphere should always fetch Abysslinde. When Abysslinde is destroyed, her effect activates from the graveyard, bypassing Abyss-sphere's downside. Abyss-sphere even self-destructs the monster it summons, so you're guaranteed to get the search off before your next turn.

Card Trooper is a great addition to the deck for multiple reasons. The mill effect gives you some easy graveyard setup. Being a level-3 Machine gives Card Trooper a ton of synergy with other cards in this deck; specifically with the level of Synchros you make and allowing you to Special Summon Wheeleder. The floating effect compensates losing Card Trooper.

Get your plays going by summoning Genex Undine and putting the non-Tuner Crystrons in your graveyard. Crystron non-Tuners have effects that activate in the graveyard, which either give deck searching or field presence. More on the non-Tuners' effects will be explained in the section below, but generally you want to pitch Crystron Thystvern first.

Undine can also pitch Citadel Whale to start your SSA setup. Additionally she searches Genex Controller for free which is the only reason we run Genex Controller in this deck. Genex Controller an be used as Synchro material, or occasionally as discard fodder to Special Summon Sulfefnir if you don't have non-Tuner Crystrons on hand.

These monsters are combo pieces to lead into your SSA board setup or a Synchro Summon. All of them, except Sulfefnir, share the effect of Special Summoning a Crystron Tuner from your deck and a unique effect that activates while in the graveyard.

Crystron Thystvern should always be the monster you pitch to the graveyard whenever possible, and you should always banish it from the graveyard to search Sulfefnir.

Sulfefnir is a combo extender generally played after you search him out with Thystvern. You will usually Special Summon him with his own effect to destroy himself and Special Summon another Crystron from your deck. Because Crystron monsters share the same effect on the field, the one you Special Summon with Sulfefnir will only depend on their graveyard effect or the level of Synchro you want to make. The discard cost when Special Summoning Sulfefnir can load Crystrons from your hand into the graveyard.

The rest of the Crystron non-Tuners are used for level and effect variety. Get them into the graveyard with Undine/Recycler, Sulfefnir's cost, or by using them to summon Citadel Whale or a Synchro monster. Crystron Smiger lets you search Crystron Impact, Crystron Prasiortle puts a Crystron on the field to extend combos, and Crystron Rosenix puts a token on the field to destroy with Crystron effects, use as Citadel Whale fodder, or synchro material.

Special Summon Citadel Whale which searches Sea Stealth Attack to establishes a powerful board state. Citadel Whale is a decent beater which also provides your WATER monsters protection against single target effects such as Dark Magic Circle, Raigeki Break, and Karma Cut. SSA essentially gives non-targeting removal effects to all high-leveled WATER monsters, while also protecting itself and Umi. SSA can also be used to protect your weaker monsters by banishing them with its first effect.

Your bread-and-butter combo would go something like this: Normal Summon Undine and pitch Crystron Thystvern to the graveyard. Banish Thystvern to search Sulfefnir. Special Summon Sulfefnir which will target himself for destruction.

Special Summon Smiger from your deck with the destroyed Thystvern's effect and use Smiger's effect to destroy Umi and Special Summon a Tuner of your choice. (The destroyed Umi can be retrieved by SSA.)

At this point you have two choices: Ideally you have a Citadel Whale which you can Special Summon to search SSA. If not, use the monsters you have on the field to make a Synchro monster. In both cases banish Smiger in your graveyard to search Crystron Impact.

Crystron Tuners are very self sufficient and unconventional. They Special Summon non-Tuners to pair with themselves, but do this during the opponent's turn which can be great disruption with their in-archetype Synchros.

Wheeleder is a good pair with any level-3 non-Tuner for quick level-6 Synchros. Particularly, you want to Special Summon Wheeleder after Normal Summoning Undine or Scrap Recycler. This way you get to extend the usefulness of your graveyard setter. The removal effect when using Wheeleder as Synchro material is also appreciated especially in control decks such as this.

Crystron Citree banishes the monsters she uses as Synchro materials which set you up to use Citree for Crystron Impact and the non-Tuner to be used with Crystron Rion. When using Citree's effect, you usually want to revive Sulfefnir to go into Samurai Destroyer or revive Undine/Recycler to go into Ametryx. This is because most non-Tuner Crystrons want to be banished by their own effect.

The real reason we run Quan is because all the other Crystron Tuners are limited. Quan is not really a bad card, just underwhelming compared to the other Tuners in his archetype. Pair it with Sulfefnir to make level-6s, or with Rosenix to make level-5s. Another powerful combo is using Crystron Entry to put 2 Quan onboard to make Quariongandrax.

Use this when your opponent controls only one monster onboard, and only if that monster happens to be quite powerful. Give an attack position Rosenix Token to your opponent.

Crystron Entry's first effect is for enabling Synchro plays. Simply putting Crystron Tuners on the field is enough to setup a Synchro Summon with their inherent effects. This can also set you up to make Crystron Quariongandrax.

Another way to use the Special Summoned Crystrons is tributing them to Special Summon Citadel Whale, setting up your SSA combo.

The graveyard effect of Crystron Entry lets you adjust a Crystron monster's level for summoning a specific Synchro monster. More importantly this mills a Crystron to your graveyard, setting up Thystvern or Smiger's search effect.

Your Extra Deck is just a toolbox of Synchro monsters mostly ranging from level-5 to 7, most of them have very similar 1-for-1 removal effects so summon whichever fits the situation best.

Quariongandrax' summoning will usually be achieved with Crystron Entry. (i.e. Citadel Whale and 2 Quan) If Quariongandrax is Synchro Summoned, you can target monsters your opponent controls and/or in their Graveyard up to the number of Synchro Materials used for its Synchro Summon and straight out banish them.

You can get rid of all monsters on your opponent’s side of the field with a single card and then attack them directly for 3000 damage. The floating effect is also quite powerful; allowing you to revive any banished monster, even the ones you banished upon summoning Quariongandrax.

Summon Vermillion Dragon Mech by using a Coral Dragon and a level-3 monster as material. It has the most cost effective removal effect and also a floating effect to recover a Tuner.

Summon Brionac to remove the most amount of cards from the opponent's field.

Coral Dragon is a good general pick since it gives you a return on the resources you spent making it.

Gungnir is able to destroy more cards than Coral Dragon.

Summon Samurai Destroyer to attack through a full enemy backrow. The floating effect is lets you revive any Machine monster, even Synchro Machine monsters in your graveyard.

Ametriz is the best monster to summon during the opponent's turn. Changing all their monsters to defense position at the start of the Battle Phase prevents them from attacking. This effect can also be used offensively to expose weak stats.

Note by BlueDelta:

While it is a very powerful archetype, it is probably one of the most expensive ones to play and it takes time to learn the combos and most importantly, speed up your plays as much as possible, so you won’t lose to the countdown timer instead of actually getting beaten by your opponent. Invoker is definitely the hardest match-up, due to the inherent danger of Crystrons in the graveyard being banished, who are vital for your plays plus Cocytus is hard to deal with. Caution is advised before jumping into this archetype before considering the circumstances.

This archetype has already faced one nerf, with 2 cards sharing a spot on the semi-limited list, plus it’s not as common as certain other metadecks due to its complexity. I cannot imagine a follow-up nerf coming anytime soon, but take this guess with a grain of salt.

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