How to play Chroma:
There are two ways to win Chroma: either combine colors additively in your chakra (the one closest to you) until it turns completely white, or combine colors subtractively in your opponent's chakra until it turns completely black.
White background cards will add their center color to your chakra, whereas black background cards will subtract their center color from your opponent. When you chose your deck at the beginning, you are choosing primarily one type of card or the other, and therfore your dominant strategy.
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