Crystal Beast decks might not be all that viable in Duel Links due to limited cards and only 3 spell/trap zones, but it can still be a fun and gimmicky. Using the Crystal Beast monster's effects to put themselves on the spell/trap zone, you can use cards like Crystal Raigeki or Parallel Twister to destroy your opponent's cards. While the skill Crystal Power boosts your monster's attack.
Send 1 to 3 cards from your hand to the Graveyard. Choose the same number of "Crystal beast" monster(s) from your Deck as the number of cards you sent from your hand to Graveyard, and place it/them tin your Spell/Trap Zone as. This Skill can only be used once per turn, and twice per Duel.
Pegasus is the more useful of the bunch since its effect grabs a Crystal Beast monster from your deck. You can select another Sapphire Pegasus to put in your spell/trap zone when you plan to special summon Ruby Carbuncle, you can then special summon the searched Pegasus' effect with Ruby Carbuncle. Tiger can still serve as a good 2000 attack monster to get over most level 4 monsters. Amber Mammoth serves as another beater but is the least important of the three, although sometimes you can use his effect to protect your other monster. When your monsters get destroyed, you can activate their effect to put them in your spell/trap zone. Make sure to never activate 3 monsters there, otherwise you'll end up blocking yourself and cause an instant lose.
When Ruby Carbuncle is special summoned, you can special summon as many Crystal Beast monsters from your spell/trap zone as you can. This makes for excellent swarming potential, and if you special summoned Sapphire Pegasus you also get additional searches.
Use these cards to special summon Crystal Beast monsters especially Ruby Carbuncle. When you have 2 Crystal Beast monsters in your backrow, you can activate Crystal Beacon to special summon Ruby Carbuncle from your deck. Then with Ruby Carbuncle's effect special summon those 2 Crystal Beast monsters. If Ruby Carbuncle is in your spell/trap zone, you can activate Crystal Promise to special summon him and also the other Crystal Beast in the spell/trap zone. You can get Ruby Carbuncle straight from your deck to the spell/trap zone when you summon Sapphire Pegasus, From there you can special summon him with Crystal Promise.
Crystal Bond is a great search card, it allows you to search 2 Crystal Beast monsters from your deck placing one in your hand and one in your spell/trap zone. You can search Sapphire Pegasus to your hand and then Normal summon it to add another Crystal Beast into your Spell/trap zone, giving you a total of 3 searches.
These cards are the ones you will need to remove your Crystal Beast monsters from your spell/trap zone. Parallel Twister can give some flexibility since you can remove any card from your backrow to destroy your opponent's card. Crystal Raigeki simply does the same as Parallel Twister,exchange a Crystal Beast in your backrow to destroy a card your opponent controls. The advantage of Crystal Raigeki is that you can use it during your opponent's turn to disrupt his plays, but as a trap it is also at a disadvantage because it needs to be set a turn before activation. You can use both these cards together by turning on self chain. Send Crystal Raigeki to the graveyard with Paralled Twister. But before Crystal Raigeki is sent to the graveyard, chain it. This gets rid combo gets rid of 2 cards your opponent controls for lesser cost than if they were activated separately.
Magical Merchant and That Grass Looks Greener can provide an alternative version of the deck. You can use them together with Jesse's exclusive skill Meet My Family! and maybe a 30 card deck for a total of 38 cards in your deck at the start of the duel. Using Magical Merchant or Grass Looks Greener can potentially let you summon Rainbow Dragon faster than Last Gamble, but it's also less consistent and relies more on luck.
You can make a Crystal Beast deck made to summon Rainbow Dragon. While it's really not all that viable in the game due to the limitations in Duel Links, you can still get a somewhat reliable deck that can also work as a regular deck, but can be inconsistent because of the need for Last Gamble.
|Destroys your opponent's monsters while unclogging your spell/trap zone.|
|Destroys all your spell/trap cards along with an equal number of enemy spell/trap cards. Can be used to clear Crystal Beasts from your spell/trap zone.|
|Similar to Parallel Twister, except it's quick-play.|
|Can be useful for certain situations, but has less synergy with the Storm plays.|
Card of the Soul
|To search for Rainbow Dragon.|
Tribute to The Doomed
|To send a Crystal Beast monster to the graveyard if you have less than 7 different types. Which can happen after you use Last Gamble.|
|When Rainbow Dragon becomes more consistent, this can be a good option.|
|Returns a Crystal Beast from your spell/trap zone to your hand along with an opponent's backrow. Best used to retrieve Sapphire Pegasus.|