Crystal Beast Amber Mammoth

Beast/Effect

When another face-up "Crystal Beast" monster you control is targeted for an attack: You can make this card the attack target instead. If this face-up card is destroyed while it is in a Monster Card Zone, you can place it face-up in your Spell & Trap Card Zone as a Continuous Spell Card, instead of sending it to the Graveyard.

Crystal Beast Amethyst Cat

Beast/Effect

This card can attack your opponent directly, but when it uses this effect, any Battle Damage it inflicts to your opponent is halved. If this face-up card is destroyed while it is in a Monster Card Zone, you can place it face-up in your Spell & Trap Card Zone as a Continuous Spell Card, instead of sending it to the Graveyard.

Crystal Beast Cobalt Eagle

Winged Beast/Effect

Once per turn: You can target 1 face-up "Crystal Beast" card you control; return that target to the top of the Deck. If this face-up card is destroyed while it is in a Monster Card Zone, you can place it face-up in your Spell & Trap Card Zone as a Continuous Spell Card, instead of sending it to the Graveyard.

Crystal Beast Emerald Tortoise

Aqua/Effect

Once per turn: You can target 1 monster you control that attacked this turn; change that target to Defense Position. If this face-up card is destroyed while it is in a Monster Card Zone, you can place it face-up in your Spell & Trap Card Zone as a Continuous Spell Card, instead of sending it to the Graveyard.

Crystal Beast Ruby Carbuncle

Fairy/Effect

When this card is Special Summoned: You can Special Summon as many "Crystal Beast" cards as possible from your Spell & Trap Card Zone. If this face-up card is destroyed while it is in a Monster Card Zone, you can place it face-up in your Spell & Trap Card Zone as a Continuous Spell Card, instead of sending it to the Graveyard.

Crystal Beast Sapphire Pegasus

Beast/Effect

When this card is Summoned: You can place 1 "Crystal Beast" monster from your hand, Deck, or Graveyard face-up in your Spell & Trap Card Zone as a Continuous Spell Card. If this face-up card is destroyed while it is in a Monster Card Zone, you can place it face-up in your Spell & Trap Card Zone as a Continuous Spell Card, instead of sending it to the Graveyard.

Crystal Beast Topaz Tiger

Beast/Effect

If this card attacks an opponent's monster, it gains 400 ATK during the Damage Step only. If this face-up card is destroyed while it is in a Monster Card Zone, you can place it face-up in your Spell & Trap Card Zone as a Continuous Spell Card, instead of sending it to the Graveyard.

Crystal Release

Equip only to a "Crystal Beast" monster. It gains 800 ATK. When this card is sent from the field to the Graveyard: You can place 1 "Crystal Beast" monster from your Deck face-up in your Spell & Trap Card Zone as a Continuous Spell Card.

Rainbow Refraction

If a monster whose original name is "Rainbow Dragon" or "Rainbow Dark Dragon" activated its effect this turn, while you controlled it: Special Summon any number of "Crystal Beast" monsters with different names from your Deck.

Rainbow Path

When an opponent's monster declares an attack: Send 1 "Crystal Beast" card from your Spell & Trap Card Zone to the Graveyard to target the attacking monster; negate the attack, then you can add 1 "Rainbow Dragon" or "Rainbow Dark Dragon" from your Deck to your hand.

Rainbow Dark Dragon

Dragon/Effect

(This card is always treated as an "Ultimate Crystal" card.)
Cannot be Normal Summoned or Set. Must be Special Summoned (from your hand) by banishing 7 DARK monsters with different names from your Graveyard, and cannot be Special Summoned by other ways. You can banish all other DARK monsters you control and from your Graveyard; this card gains 500 ATK for each card banished this way.

Rainbow Dragon

Dragon/Effect

Cannot be Normal Summoned or Set. Must be Special Summoned (from your hand) by having 7 "Crystal Beast" cards with different names on your field or in your Graveyard, and cannot be Special Summoned by other ways. This card cannot activate its effects the turn it is Special Summoned.
• During either player's turn: You can send all "Crystal Beast" monsters you control to the Graveyard; this card gains 1000 ATK for each card sent.
• You can banish all "Crystal Beast" monsters in your Graveyard; shuffle all cards on the field into the Deck.

Ancient City - Rainbow Ruins

You must have this many "Crystal Beast" cards in your Spell & Trap Card Zone to activate and resolve these effects. ? 1+: This card cannot be destroyed by card effects. ? 2+: Once per turn (including the opponent's) you can halve the Battle Damage you take. ? 3+: During either player's turn, when a Spell/Trap Card is activated: You can send 1 "Crystal Beast" monster you control to the Graveyard; negate the activation, and if you do, destroy it. ? 4+: Once per turn, during your Main Phase: You can draw 1 card. ? 5: Once per turn, during your Main Phase: You can target 1 "Crystal Beast" card in your Spell & Trap Card Zone; Special Summon that target.

Ultimate Crystal Magic

When your "Crystal Beast" monster is destroyed by battle: Send 7 "Crystal Beast" cards with different names from your hand, Deck, and/or face-up from your field to the GY; Special Summon 1 "Ultimate Crystal" Fusion Monster from your Extra Deck. (This is treated as a Fusion Summon.) If a face-up "Ultimate Crystal" monster you control leaves the field because of an opponent's card effect: You can banish this card from your GY; place any number of "Crystal Beast" monsters from your GY face-up in your Spell & Trap Zone as Continuous Spells.

Rainbow Kuriboh

Fiend/Effect

You can only activate each effect of "Rainbow Kuriboh" once per turn.
- When an opponent's monster declares an attack: You can target that monster; equip this card from your hand to that target. It cannot attack.
- When an opponent's monster declares a direct attack: You can Special Summon this card from your Graveyard. If Summoned this way, banish this card when it leaves the field.

Rainbow Overdragon

Dragon/Fusion/Effect

7 "Crystal Beast" monsters
(This card is always treated as an "Ultimate Crystal" card.)
Must be either Fusion Summoned, or Special Summoned by Tributing 1 Level 10 "Ultimate Crystal" monster (in which case you do not use "Polymerization"). Once per turn: You can banish 1 "Crystal Beast" monster from your GY; this card gains ATK equal to the banished monster's, until the end of this turn. (Quick Effect): You can Tribute this Fusion Summoned card; shuffle all cards on the field into the Deck.

Crystal Keeper

Warrior/Effect

Pendulum Effect: Each turn, the first time an "Ultimate Crystal" monster(s) and/or "Crystal Beast" card(s) you control would be destroyed by card effect that turn, it is not destroyed.
Monster Effect: If a "Crystal Beast" monster you control battles an opponent's monster, during damage calculation (Quick Effect): You can Tribute this card from your hand or face-up from your field: your battling monster's ATK/DEF become double its original ATK/DEF during that damage calculation only, but it is destroyed at the end of this Damage Step.

Crystal Master

Spellcaster/Effect

Pendulum Effect: Your opponent cannot target "Crystal Beast" cards you control, or "Ultimate Crystal" monsters in your Monster Zone, with card effects.
Monster Effect: You can Tribute this card; add 1 "Ultimate Crystal" monster, "Crystal Beast" monster or "Crystal" Spell/Trap from your Deck to your hand.