If you have 7 "Crystal Beast" cards with different names on the field or in your Graveyard: Special Summon 1 "Rainbow Dragon" or "Rainbow Dark Dragon" from your Deck or Graveyard, ignoring the Summoning conditions.
|Victory against||Jesse Anderson [R]|
Use the cards to search Crystal Beast monsters out of your deck to quicken the activation condition of Rainbow Gravity.
These are the only Crystal Beast monsters and they also total only 7 different names, meaning that if you want to use Rainbow Gravity you would need to add at least one copy of each of these Crystal Beasts to your deck.
You could use That Grass Looks Greener in a 30 card deck to try and mill out all the necessary Crystal Beast monsters to fulfill Raibow Gravity's activation condition. To take this further you can use the skill Meet My Family to create a 38 card deck, milling more cards with That Grass Looks Greener.
|Meet My Family!|
At the start of a Duel, the followin cards are added to your Deck and shuffled: "Rainbow Dragon" "Crystal Beast Sapphire Pegasus" "Crystal Beast Ruby Carbuncle" "Crystal Beast Cobalt Eagle" "Crystal Beast Cobalt Eagle Crystal Beast Emerald Tortoise" "Crystal Beast Amber Mammoth" "Crystal Beast Amethyst Cat". You will be considered the original owner of these cards.
|Summoning categories||Special Summons from your Deck / Special Summons from your Graveyard / Ignoring the Summoning conditions|