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.
Hiro Amanokawa BT21-080 SR Hero [Start of Your Main Phase] If your opponent has a Digimon, gain 1 memory. [Your Turn] When effects place digivolution cards under any of your Digimon with [Gammamon] in their texts or the [Hero] trait, by suspending this Tamer, <Draw 1> and gain 1 memory. --- [Security] Play this card without paying the cost.
Hiro Amanokawa BT21-080 SR Hero [Start of Your Main Phase] If your opponent has a Digimon, gain 1 memory. [Your Turn] When effects place digivolution cards under any of your Digimon with [Gammamon] in their texts or the [Hero] trait, by suspending this Tamer, <Draw 1> and gain 1 memory. --- [Security] Play this card without paying the cost.
Hiro Amanokawa BT21-080 SR Hero {{StartYourMain|memory}}. [Your Turn] When effects place digivolution cards under any of your Digimon with [Gammamon] in their texts or the [Hero] trait, by suspending this Tamer, <Draw 1> and gain 1 memory. ---