On October 22nd, when the new Forbidden/Limited List came into effect, Gemini and many other decks that struggled against Fur Hire and Amazoness were given a second chance; I myself was surprised by how well this deck was able to perform in the current meta and by how easy it was to climb with it.
This deck focuses on taking control of the board, utilizing the destruction effects of Gemini Spark, Evocator Chevalier and Dark Valkyria together with Heavy Knight of the Flame’s ability to banish Special Summoned monsters.
Since this card is the main reason why this deck is even playable in the first place, I thought I would start from it.
Being a Quick-Play Spell is definitely what gives this card an edge as you’re able to chain it to common Battle Traps such as Wall of Disruption and Widespread Ruin, after forcing their activation with your monster’s attack. You can target and destroy monsters or backrow with Gemini Spark and, after the target has been destroyed, you also get to draw a card, which helps you draw into your other Monster Cards.
Thanks to Balance, you have over a 50% chance of starting with this card in your hand, together with a monster that you can use in order to activate it and a Trap Card.
A pretty common way to use Gemini Spark is to set it on your first turn and then destroy the monster your opponent summons, but always keep in mind that leaving an empty board is extremely risky: a lot of decks are able to either summon multiple monsters per turn or at least recover very fast, which is something that can’t always be said for this deck.
When they are Gemini Summoned, Dark Valkyria and Evocator Chevalier are able to destroy cards on the field: the former is limited to Monster Cards and can pretty much use this effect only once while it’s on the field, whereas the latter can destroy anything on the opponent’s side of the field, but you need to send a face-up Equip Card you control to the Graveyard in order to activate it, so it heavily relies on Supervise.
My advice, when you start with Evocator Chevalier, another Gemini Monster and Gemini Spark, is to summon the other monster first; if you Tribute the monster using Gemini Spark and then you draw Supervise, you will get more value out of it with Chevalier.
Both Valkyria and Chevalier have pretty good stats for Level 4 monsters and powerful effects, the only problem is that they have to be Gemini Summoned in order to gain them, but that's what Supervise is there for.
Heavy Knight of the Flame is one of the best Level 4 Gemini monsters we have in the game, even though that’s not saying much since the others are quite underwhelming; Heavy Knight can gain the ability to banish Special Summoned monsters, which is very relevant in the current meta with Blue-Eyes, Vampire, Masked HERO, Yubel Fire King and Silent Spellbook being the most popular choices.
Heavy Knight puts an immense amount of pressure on the opponent, it sometimes forces them to attack into your backrow because on the next turn they might lose their monster anyway.
This Equip Spell allows your Gemini monsters to gain their effects right away and it has very good synergy with Evocator Chevalier; you can always equip this card to one of your monsters and be sure that, if anything happens to that monster, you will be able to Special Summon something from the Graveyard.
If you tribute a monster with Gemini Spark, you can Special Summon it back with this card, if it was equipped with it; you can use this to get a second attack off in order finish the duel.
Due to Gemini Spark’s activation cost, you will often find yourself with an empty field and here’s where this Trap Card comes into play.
When an opponent’s monster is declaring a direct attack, Drowning Mirror Force can shuffle all Attack Position on their side of the field into the deck; while the requirement for the activation of this Trap Card is pretty limiting, it can’t be denied how destructive it can be when it goes off; Drowning Mirror Force is not just here because it’s a good card, it’s here because it has synergy with this deck in particular.
Does Treacherous Trap Hole work well in a deck with other Traps?
If you start with Treacherous as your guaranteed Trap Card, there is really not going to be a problem, but, if you start with another Trap, you activate it and then draw Treacherous, it becomes a dead card.
This really doesn’t happen that often: your chances of drawing Treacherous are actually quite low, if you didn’t start with it.
The only change I decided to make after the Forbidden/Limited List was taking out Wall of Disruption and adding Mirror Wall. Mirror Wall has proven to be a superior option against Blue-Eyes, Masked HERO and even Cyberdark as swarming is not as much of an issue as it was before the 22nd of October.
There aren't really that many Level 4 Gemini monsters you’d want to run as the vast majority have either poor base stats or just gain underwhelming effects once they are Gemini Summoned; with Balance you are guarantee to start with at least a monster, a Trap Card and either Gemini Spark or Supervise.
This is currently the most problematic matchup for this deck, as the destruction effects that would normally be used to cripple the opponent are not as effective when you are dealing with cards like Samurai Skull and Gozuki and their floating effects. Heavy Knight is crucial against this deck, it’s a Zombie-Type monster with 1800 ATK, meaning that, even if Vampire Kingdom is active, it can still get over any Level 4 or lower monster the opponent can summon, and, when it gains its effect, it can also banish Special Summoned monsters by attacking them.
Another important component is the backrow and that’s why, when Vampire Kingdom is on the field, you want to get rid of Vampire Grace as soon as possible, preventing it from activating its effect and start targeting your Drowning Mirror Force and Mirror Wall. Use Gemini Spark to get rid of Vampire Grace and then Drowning Mirror Force to shuffle all Attack Position monsters your opponent controls back into the Deck; by the time a Vampire player has completely set up the board, he probably has 2500 or less Life Points, so finishing him off shouldn’t be an issue.
Masked HERO decks usually feature Cosmic Cyclone or Hey, Trunade! as a way of dealing with backrow and end a match quickly, so that could be a problem in this matchup as you are mostly going to rely on them, but, in order to get over any of your monsters, they will have to Special Summon something from their Extra Deck since none of their main deck monsters have more than 1600 ATK and, at that point, Gemini Spark, Drowning Mirror Force and Treacherous will be enough to stop them.
Keep in mind that, even if your opponent chains Mask Change to Drowning Mirror Force, they won’t be able to Special Summon Masked HERO Anki in Attack Position as it would be shuffled right back into the Extra Deck.
Blue-Eyes is really not an issue for this deck, the only form of removal it usually packs is Dragon Spirit of White and, if it targets Gemini Spark, you can still chain it; even the highest ATK monster won’t be able to get over your 1800-1900 ATK monsters through a Mirror Wall and Heavy Knight pretty much forces the opponent to attack into your backrow.
With a good hand Blue-Eyes can win, but it either needs to play around Drowning Mirror Force, which is something it can’t always afford to do, or be lucky enough to start with Dragon Spirit of White and Silver's Cry and then target your face-down Trap Card.
Going first and destroying with Gemini Spark Spellbook Magician of Prophecy before the opponent is able to either set up its Graveyard or Special Summon Silent Magician can be very crucial so, if you go first, turn on your toggle button in order to be able to respond even to the monster being set.
You are not running many monsters, so having the only one on the field banished by Spellbook of Fate can really put your at a disadvantage as, by the time you’ll be able to summon a second one, your opponent will likely have a second Spellbook of Fate and three cards to banish at the ready, but keep in mind that you can still chain Gemini Spark to their Quick-Play Spell and get some value out of it; Drowning Mirror Force obviously doesn't trigger Silent Magician’s effect and it also slows down the opponent, as they won’t have a Spellcaster on the field anymore to activate some of their Spell Cards.
With so many different destruction effects, Yubel - Terror Incarnate’s ability to float into Yubel - The Ultimate Nightmare can easily be dealt with; additionally your monsters’ effects, Supervise and even Mirror Wall can be used to make Yubel - Terror Incarnate miss the timing by chaining your removal to them.
Sacred Phoenix of Nephthys can be banished by Heavy Knight, so the fact that it can come back during each of your opponent’s Standby Phases and get rid of your backrow is not a problem either.