The color wheel can influence deck construction choices. Cards from colors that are aligned such as red and green often provide synergistic effects, either due to the core nature of the schools or through designs of cards, but may leave the deck vulnerable to the magic of the common color in conflict, blue in the case of red and green. Alternatively, decks constructed with opposing colors like green and blue may not have many favorable combinations but will be capable of dealing with decks based on any other colors. There are no limits to how many colors can be in a deck, but the more colors in a deck, the more difficult it may be to provide mana of the right color.
the color wheel can influence deck construction choices cards from colors that are aligned such as red and green often provide synergistic effects either due to the core nature of the schools or through designs of cards but may leave the deck vulnerable to the magic of the common color in conflict blue in the case of red and green alternatively decks constructed with opposing colors like green and blue may not have many favorable combinations but will be capable of dealing with decks based on any other colors there are no limits to how many colors can be in a deck but the more colors in a deck the more difficult it may be to provide mana of the right color