Starting from ST9 and ST10, multi-color cards and DNA Digivolution are introduced to players. These are new mechanics that help bring the Digimon Card Game to a next level of technique and strategy.
Multicolor Digimon or Option Cards


These Digimon and option cards have multiple colors, such as yellow/purple, blue/green, black/red, blue/red, etc. They are treated as having all the specified colors simultaneously.
Unlike Digimon with effect such as "Your Turn/ All turn: this Digimon is also treated as (color)", multiple colour Digimon are considered to have multi-color in all areas, including raising area, battle area, trash, hand, deck, security stack. Moreover, a single multicolor Digimon counts as having multiple colors for cards that care about color count.

For example: [BT8-053] Raidramon is a blue/green Digimon that is counted as both a blue Digimon and a green Digimon in all the area (including raising area). Since it is a blue/green Digimon, it can digivolve into a Digimon that has either color. If a card effect requires you to have 2 or more colors of Digimon in play, a single multicolour Raidramon counts for 2 colors all by itself.

[BT8-084] Kimeramon is a special white Digimon that can be evolved from any color Digimon. If Kimeramon is Jogress-ed (DNA) Digivolution from other multiple colors Digimon, this Digimon is also treated as the color of the cards in its digivolution cards. For example, if Kimeramon is jogressed from a LV4 yellow/purple Digimon and a LV4 blue/green Digimon, Kimeramon now itself is considered as a 5 colors Digimon (white, yellow, purple, blue and green).


In the early time of ST9/ST10, there are many misplays when using multicolour option cards. Originally we have thought that we could cast a multi-color option card as long as there is at least 1 card of the same color in play, this is INCORRECT.
To use a multi-color option card, you must meet all its color requirements. For example, to use [BT8-105] Dark Gaia Force, you must have both black and red color cards on your field. These can include your hatched Digitama in raising area, tamer or Digimon in battle area.
DNA Digivolution



