Since crazy and unexpected combos are everyone's favourite things, this blog will talk about one of those. The title obviously says this already, along with the fact that the casual deck will revolve around Gemini monsters. It's also not hard to guess with Gemini monsters the deck will use because there's little Gemini monsters worth using.
Chthonian Emperor Dragon (CED) is obviously one the better ones. Two attacks from it is just too damaging to ignore. Tribute summoning it is really bad though since it's hard for a 2400 ATK normal monster that will obviously inflict a lot of damage very soon to last very long. So it's up to its friend Blazewing Butterfly to summon it. Now if Blazewing Butterfly is the only friend CED gets, then this deck would have been posted a long time ago, but Gladiator's Assault brings about a new support: Superalloy Beast Raptinus (SBR). It turns Blazewing Butterfly into a Monster Reborn for CED, and CED becomes much faster. SBR is also a Dragon type, which works well with the fact that Dragons are popular in the casual metagame and is a type with a decent amount of support.
The game plan is to summon CED for a lot of damage. A potential OTK would be to Dragon's Mirror out a SBR then play Dimension Fusion to return 2 CED to play and attack for game. Here's deck list before continuing on:
Tribute Monsters: 3
3 Chthonian Emperor Dragon
Monsters: 17
3 Blazewing Butterfly
3 King of the Swamp
3 UFO Turtle
2 Mystic Tomato
1 Breaker the Magical Warrior
1 Lord of D.
1 Marshamallon
1 Sangan
1 Skreech
1 Snipe Hunter
1 Spirit Reaper
1 Treeborn Frog
Spells: 16
3 Dragon's Mirror
2 Dark Factory of Mass Production
2 Foolish Burial
1 Creature Swap
1 Dimension Fusion
1 Future Fusion
1 Heavy Storm
1 Lightning Vortex
1 Mystical Space Typhoon
1 Nobleman of Crossout
1 Premature Burial
1 Scapegoat
Traps: 5
2 Sakuretsu Armor
1 Mirror Force
1 Phoenix Wing Wind Blast
1 Torrential Tribute
The deck tries to summon CED as many times as possible, especially early game. Foolish Burial is a great card in the deck as it gives access to Treeborn Frog when CED is in hand, CED when Blazewing Butterfly is in hand, and just sets up whichever fusion is needed when Dragon's Mirror is in hand. There are 2 monsters to summon with Dragon's Mirror. SBR is a choice, but it's best to leave 2 Blazewing Butterfly and 1 CED in the graveyard for use with Dark Factory of Mass Destruction. King Dragun is good when CED is in hand and its built in protective effect works well with CED.
The deck is capable of generating a continuous stream of aggression while setting up for a big OTK. The continuous aggression will hopefully get rid of most of the disruption such that the OTK will be disruption free. Even if the opponent survives, it is highly likely that a lot of damage has already been caused so another random hit from CED would end the game.
A good hand could defeat slower decks like Monarchs, but Macro ruins the deck. First turn Dimensional Fissure with protection in place means auto lose as almost every card in the deck does something with the graveyard. It's decent against Gadgets as Shrinks and Sakuretsu Armor just bounce off King Dragun and the mass amount of searchers further makes Shrink unfavourable.
Things get pretty bad if a Raiza hits a SBR then attacks down a CED so beware. Other than that, it's a Dragon Gemini deck and that has to warrant some fun value. Feel free to try the deck and enjoy!