Knight Day Grepher

Warrior/Gemini

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it become an Effect Monster with this effect. ? During your End Phase: You can target 1 Equip Spell Card in your Graveyard; add that target to your hand. You can only use this effect of "Knight Day Grepher" once per turn.

Blazewing Butterfly

Insect/Gemini/Effect

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it be treated as an Effect Monster with this effect:
- You can Tribute this card to Special Summon 1 Gemini monster from your Graveyard, except "Blazewing Butterfly". A Gemini monster Special Summoned by this effect is treated as an Effect Monster, and gains its effect.

Chemicritter Hydron Hawk

Winged Beast/Gemini/Effect

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is a Normal Monster on the field, you can Normal Summon it to have it become an Effect Monster with this effect.
- You can discard 1 card, then target 1 Gemini monster in your Graveyard; Special Summon it in Defense Position. You can only use this effect of "Chemicritter Hydron Hawk" once per turn.

Dark Valkyria

Fairy/Gemini/Effect

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is a Normal Monster on the field, you can Normal Summon it to have it become an Effect Monster with this effect.
- Once, while this card is face-up on the field: You can place 1 Spell Counter on it. This card gains 300 ATK for each Spell Counter on it. You can remove 1 Spell Counter from this card, then target 1 monster on the field; destroy that target.

Darkstorm Dragon

Dragon/Gemini/Effect

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is a Normal Monster on the field, you can Normal Summon it to have it become an Effect Monster with this effect.
-Once per turn: You can send 1 face-up Spell/Trap Card you control to the Graveyard; destroy all Spell and Trap Cards on the field.

Featherizer

Spellcaster/Effect

When this card is destroyed by battle and sent to the Graveyard, you can send 1 Gemini Monster from your Deck to the Graveyard and draw 1 card.

Heavy Knight of the Flame

Zombie/Gemini/Effect

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is a Normal Monster on the field, you can Normal Summon it to have it become an Effect Monster with this effect.
- At the start of the Damage Step, if this card attacked a Special Summoned monster: You can banish that monster.

Red-Eyes Archfiend of Lightning

Fiend/Gemini/Effect

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is a Normal Monster on the field, you can Normal Summon it to have it become an Effect Monster with this effect.
- Once per turn: You can destroy all face-up monsters your opponent controls with DEF lower than this card's ATK.

Vylon Prism

Thunder/Tuner

If this card is sent from the Monster Card Zone to the Graveyard: You can pay 500 Life Points, then target 1 face-up monster you control; equip this card to that target. If the equipped monster attacks or is attacked: It gains 1000 ATK during the Damage Step only.

Gemini Spark

ribute 1 face-up Level 4 Gemini monster, then target 1 card on the field; destroy it, and if you do, draw 1 card.

Ribbon of Rebirth

During the End Phase, if the equipped monster was destroyed by battle and sent to the Graveyard this turn: Special Summon it from the Graveyard to your side of the field.

Silent Doom

Target 1 Normal Monster in your Graveyard; Special Summon it in face-up Defense Position, but it cannot attack.

Supervise

Equip only to a Gemini monster. It becomes an Effect Monster, and gains its effects. If this face-up card is sent from the field to the Graveyard: Target 1 Normal Monster in your Graveyard; Special Summon it.

Fiendish Chain

Activate this card by targeting 1 Effect Monster on the field; negate the effects of that face-up monster while it is on the field, also that face-up monster cannot attack. When it is destroyed, destroy this card.

Floodgate Trap Hole

When your opponent Summons a monster(s): Change that monster(s) to face-down Defense Position. Monsters changed to face-down Defense Position by this effect cannot change their battle positions.

King's Consonance

When an opponent's monster declares a direct attack: Negate the attack, then you can apply the rest of this card's effect. Banish 1 Tuner monster and any number of non-Tuner monsters from your Graveyard, whose total Levels equal 8 or less, and if you do, Special Summon from your Extra Deck 1 Synchro Monster whose Level equals the total Levels of those banished monsters. (This Special Summon is treated as a Synchro Summon.)

Black Brutdrago

Dragon/Synchro/Effect

1 Tuner + 1 or more non-Tuner Gemini Monsters // Once per turn, you can send 1 Gemini Monster from your hand to the Graveyard to destroy 1 Spell or Trap Card your opponent controls. When this card is destroyed and sent to the Graveyard, you can select 1 G

HTS Psyhemuth

Psychic/Synchro/Effect

1 Tuner + 1 or more non-Tuner monsters // After damage calculation, when this card battles an opponent's monster: You can banish that monster, also banish this card.

Vola-Chemicritter Methydraco

Beast-Warrior/Xyz/Effect

2 Level 8 Gemini monsters
When this card is Xyz Summoned: You can target 1 Gemini monster in your Graveyard; Special Summon it. While this card has Xyz Material, monsters your opponent controls cannot target Gemini monsters you control for attacks, also your opponent cannot target Gemini monsters you control with card effects. When a Gemini monster is Normal Summoned: You can detach 1 Xyz Material from this card; make your opponent send 1 card from their hand or field to the Graveyard (their choice).