Q1: What colors of cards does "the same color" as the specified card refer to?
It refers to a card that has 1 of the same colors as the specified card.
Q2: If I choose a single-color red Tamer for this card's Main effect, can I play a multicolor Digimon card that includes red?
Yes, you can.
Q3: If I choose a red and blue 2-color Tamer for this card's Main effect, can I play a single-color red or blue Digimon card?
Yes, you can.
Future Potential! P-156 P While you have a Tamer, you may ignore this card's color requirements. [Main] Choose 1 Tamer. You may play 1 Digimon card of the same color as the chosen Tamer and a play cost of 3 or less from your hand or trash without paying the cost. --- [Security] You may play 1 Tamer card from your hand without paying the cost. Then, add this card to the hand.
Future Potential! P-156 P While you have a Tamer, you may use this card ignoring its color requirements. [Main] Choose 1 Tamer. You may play 1 Digimon card with the same color as the chosen Tamer with a play cost of 3 or less from your hand or trash without paying the cost. ---
未来への可能性!! P-156 P 自分のテイマーがいる間、このカードは色条件を無視できる。 【メイン】テイマー1体を選ぶ。自分の手札/トラッシュから、選んだテイマーと同じ色の登場コスト3以下のデジモンカード1枚をコストを支払わずに登場できる。 --- 【セキュリティ】自分の手札から、テイマーカード1枚をコストを支払わずに登場できる。その後、このカードを手札に加える。