yes they have, hundred eyes dragon,underground arachnid,frozen fitsgerald
The 'Dark Synchro' archetype will almost certainly never be brought to the TCG. The main reason is because almost all of the Dark Synchro Monsters from the show, have already been released as regular Synchro Monsters instead. Zeman the Ape King, and Underground Arachnid are two, both regular white-bordered Synchro Monsters.
The Dark Tuner and Dark Synchro Monsters have yet to have been released in the Official Card Game (OCG) in Japan, so it is very unlikely they will be made available in the United States.
The 'Dark Synchro' monsters as depicted on the anime, do not exist in the real card game. All the 'Dark Synchros' that have been released as real cards, have all been released as regular Synchro monsters instead. So cards like Underground Arachnid, Zeman the Ape King, etc, are summoned like regular synchro monsters.
you cant
You Synchro Summon it with Tuner monsters and Non Tuner monsters that adds up to the level of the Black Rose Dragon. Since BRD is Lv7 you need monsters that would add up to that number.
get a dark signer to be your partner, go to the card shop, once there a card pack will have appeared, if you buy enough you will find dark synchro monsters in it.
They may be released after a while as konami are busy making the majestic tuning cards and the shooting star dragon. I also hope that they will release the dark synchros All but one of the 'Dark Synchro Monsters' from the show have already been released as regular Synchro Monsters. Zeman the Ape King, Underground Arachnid, Moon Dragon Quilla, Hundred-Eyes Dragon, Frozen Fitzgerald and Dark Diviner are all out (the last two only in Japan at the moment) so Dark Flat Top is the only known one remaining that is still anime only and with a negative level.
Destroyed monsters go to the graveyard, including destroyed Fusion or Synchro monsters.
Synchro Monsters are placed in the Extra Deck along with the Fusion Monsters at the beginning of a Duel.
You may have a total of 15 fusion and synchro monsters in your extra deck(renamed from fusion deck with the addition of synchro monsters)
Yes they are coming out with the naturia beast and naturia leodrake synchro monsters in hidden arsenal 2
Synchro Monsters are the newest type of Monster Card. Their color frame is white and include "/Synchro" next to their Monster Type. They are included in the Extra Deck (formally known as the Fusion Deck) along with the Fusion Monsters (Note that with the release of Synchro Monsters, Konami has placed a limit of 15 cards in an Extra Deck. This means that you can only have a combined total of 15 Fusion and Synchro Monsters in your Extra Deck).You must Synchro Summon a Synchro Monster to place it on the field. To Synchro Summon a monster, you must have one Tuner Monster and one or more non-Tuner Monsters face-up on the field. The combined Levels of the Tuner Monster and the other monsters you wish to use as Synchro Material Monsters must equal the Level of the Synchro Monster. Once these requirements are met, you can send the monsters to the Graveyard to Synchro Summon the appropriate Synchro Monster face-up onto your side of the field (this is treated as a Special Summon as well). It is important to note that the Tuner Monster and the other Synchro Material Monsters must be FACE-UP on the field. Almost always, you cannot use more than one Tuner Monster in the Synchro Summon (except in the case of XX-Saber Gottoms).For more information regarding Synchro Monsters, click the first "Related Link" below.For more help on how to Synchro Summon, click on the second "Related Link" below.