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.
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
Crystal Beasts in the Spell and Trap Card Zone can be treated as Continuous Spell Cards, allowing you to activate their effects and send them to the Graveyard when destroyed. This means you can activate their effects from the Spell and Trap Card Zone, like summoning Crystal Beast monsters from your Spell and Trap Card Zone. Just remember, they can't defend your Life Points like a good ol' fashioned Trap Card.
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
No, they can not be used for Tribute Summons. The one scenario that they could be used as Tributes is to summon "Hamon, Lord of Striking Thunder" since Crystal Beasts in the Spell/ Trap card area are treated as Continuous Spells.
When a card, such as Spell Striker, requires an action to be Summoned, the action will almost always be performed first before the monster is Summoned. Therefore, concerning Spell Striker, to Special Summon it, you must remove one Spell Card from play first, then you place it on the field afterwards.
No, the Crystal Beast goes to the graveyard if tributed. Crystal Beasts only get to choose to go to the S/T zone if they are 'destroyed'. Tributing, or 'sending', are not destruction effects. Effects that destroy will say so on the card, and also monsters can be destroyed by battle.
get the card pack force of the breaker
No. A 'Crystal Beast monster' is a monster with the words 'Crystal Beast' in the name. So any card that works on a 'Crystal Beast' card, will not work on Rainbow Dragon, even though it is undeniably related to crystal beasts.
the card number is 79407975 if you want to check go to http://yugioh.wikia.com/wiki/Rainbow_Dark_Dragon
No, only from your hand. They can be special summoned from graveyard by cards like Monster Reborn if they were properly summoned initially before they went there. However you can't resummon them from the graveyard with their Ritual Spell Card.
Oh, dude, making an anti-Crystal Beast deck is like trying to avoid getting caught in a rainstorm without an umbrella - not impossible, but definitely a pain. You wanna pack your deck with cards that can counter those shiny crystal critters, like spell and trap removal, monster negation, and maybe some good ol' monster destruction effects. Just remember, the Crystal Beasts may sparkle, but your deck needs to shine brighter to take 'em down!