They are distinguished by a rainbow-colored card frame and feature the given card's constituent civilizations' symbols watermarked in the card's text box, and those civilizations' colors represented in its type box, mana cost indicator, and mana value, psychic cell indicator, and/or victory logo (if applicable). Multicolored cards features various creatures, evolution creatures, spells, and cross gear, and so far even includes one fortress card.
Several races are exclusive to Multicolored cards such as Starnoid, Pegasus, and most prominently, Spirit Quartz. All Multicolored cards have a minimum cost of 2, due to their requirement of needing at least two civilizations to cast.
Whenever you put a multicolored creature into the battle zone, you may choose one of your opponent's creatures and tap it. That creature doesn't untap at the start of your opponent's next turn.
Space Charge: Multicolored — Put a multicolored Alien psychic creature with a cost less than or equal to the number of cards in your mana zone from your hyperspatial zone into the battle zone.
When you put this creature into the battle zone, put a multicolored psychic creature with cost 6 or less into the battle zone from the hyperspatial zone.
1x Any number of creatures that make up all of the civilizations as a whole: Light, Water, Darkness, Fire, and Nature.
■ Meteorburn—When this creature attacks, you may choose a card under this creature and put it into the graveyard. If you do, reveal the top 3 cards of your deck. From there, you may put any number of multicolored creatures into the battle zone for no cost and cast any number of multicolored spells for no cost. Then, put the remaining cards at the bottom of your deck in any order.
Discard a card at random from your opponent's hand. If that card isn't a multicolored card, you may return a multicolored creature from your graveyard to your hand.
Search your deck. You may take a multicolored creature from your deck, show that creature to your opponent, and put it into your hand. Then shuffle your deck.
Similar to single-civilization cards, casting Multicolored cards also requires mana corresponding to the correct civilizations, except they require at least one of each mana type depicted on the card's mana indicator, behind the mana cost on the upper left of each card.
For example, a Fire and Nature creature with a mana cost of 7 such as Bombazar, Dragon of Destiny requires 1 fire civilization card, 1 nature civilization card, and 5 other cards of any civilization to be tapped in your mana zone in order to summon it.
You can only tap a Multicolored card for one of its civilizations' mana; for example, if you have the Darkness-Fire creature Jack Valdy, the Everlasting and the pure Water creature Qurian in the mana zone, you cannot tap both to play the Darkness-Fire creature Pyron, the Battle Dragonic Firespirit.