Yes of course. As long as they were special summoned before, or during the battle phase.
No, monsters can only be normal or special summoned to the monster card zone. Crystal Beasts go to the S/T zone when destroyed, you don't place them there automatically.
no, they are treated as spells
no you cant use crystal promise something else this card is a trap that lets you summon rainbow dragon without crystal beasts rainbow dragon cant summon with crystal promise unless it was crystal beast rainbow dragon
Jesse Anderson (duelist pack) with 5 cards in. Nearly all of them will be crystal beasts. Force of the breaker (booster pack) also has some crystal beasts. And is the only pack to get crystal beast sapphire pegasus.
No, they can only enter the S/T zone when an effect places them there. They usually go there when destroyed, as per their own effect, but Sapphire Pegasus can place them there from deck too.
There are no structure decks, but you can make your own crystal thunder deck with the crystal beasts, hamon, and rainbow dragon.
by a Jesse starter deck for yugioh gx. it will have crystal beasts
The cast of Attack of the Moon Beasts - 2013 includes: Ervin Oneal
i would go crystal beast as when the beasts get killed the go to your spell zone and count a continues spells so you can special summon Hamon, Lord of Striking Thunder and you can combo to get rainbow drago that's 2 monsters with 4000 attack and awesome effects Armed dragon deck in my opinion because it's faster to summon compared to pilling up crystal beasts and armed dragon lv10 can easily wipe out hamon and rainbow dragon with his effect at the low cost of 1 card in your hand. Added to that he's a 3000 beater.
Mabye, but probably not
Crystal Beasts are primarily found in the "Crystal Beast" structure deck, as well as in various booster packs such as "Phantom Darkness," "Shadow of Infinity," and "Duelist Pack: Yugi." They were also featured in the "Legendary Duelists" series. For the most current availability, you might want to check the latest sets or reprints that include Crystal Beasts.
When Ghosts Attack - 2013 Beasts from the Beyond - 1.8 was released on: USA: 8 December 2013