Q1: What does a card with "X in its text" refer to?
It refers to a card that contains the specified text or icon in its name, traits, effects, inherited effects, (Rule), digivolution requirements, DNA digivolution, DigiXros requirements, burst digivolve, App Fusion, or Link. For example, a card with Knightmon in its text would include cards with the name DarkKnightmon and cards with the text Knightmon in their effects.
Lv.3 Vemmon BT21-056 C Rookie | Unknown | Unknown/LIBERATOR [On Play] By trashing 1 card with [Vemmon] in its text from your hand, you may return 1 non-Digi-Egg card with [Vemmon] in its text from your trash to the hand. --- Inherited: [Your Turn] [Once Per Turn] When this Digimon would digivolve into a Digimon card with [Vemmon] in its text, reduce the digivolution cost by 1.
Lv.3 Vemmon BT21-056 C Rookie | Unknown | Unknown/LIBERATOR [On Play] By trashing 1 card with [Vemmon] in its text from your hand, you may return 1 non-Digi-Egg card with [Vemmon] in its text from your trash to the hand. --- Inherited: [Your Turn] [Once Per Turn] When this Digimon would digivolve into a Digimon card with [Vemmon] in its text, reduce the digivolution cost by 1.
Lv.3 Vemmon BT21-056 C rookie | Unknown | Unknown/LIBERATOR [On Play] By trashing 1 card with [Vemmon] in its text from your hand, you may return 1 non-Digi-Egg card with [Vemmon] in its text from your trash to the hand. --- Inherited: [Your Turn] [Once Per Turn] When this Digimon would digivolve into a Digimon card with [Vemmon] in its text, reduce the digivolution cost by 1.
Lv.3 ベムモン BT21-056 C 成長期 | 不明 | 不明/リベレイター 【登場時】自分の手札から、「ベムモン」の記述があるカード1枚を破棄することで、自分のトラッシュから、デジタマカード以外の「ベムモン」の記述があるカード1枚を手札に戻せる。 --- Inherited: 【自分のターン】[ターンに1回]このデジモンが「ベムモン」の記述があるデジモンカードに進化するとき、支払う進化コスト-1。