

Q1: What kind of card 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), digivolve requirements, DNA Digivolve, DigiXros requirements, Burst Digivolve, App Fusion, Link, or Assembly requirements. 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.5 Knightmon EX13-058 R Ultimate | Data | Warrior [When Attacking] [On Deletion] You may play or use 1 card with [Knightmon] in its text and a play or use cost of 4 or less from your hand without paying the cost. [Opponent's Turn] All of your Digimon with [Knightmon] in their texts gain <Reboot> and <Blocker>. --- [All Turns] [Once Per Turn] When any of your Digimon with [Knightmon] in their texts are played, <De-Digivolve 1> 1 of your opponent's Digimon.
Lv.5 Knightmon EX13-058 R Ultimate | Data | Warrior [Digivolve] Lv.4 w/[Knightmon] in text: Cost 3 [When Attacking] [On Deletion] You may play or use 1 card with [Knightmon] in its text and a play or use cost of 4 or less from your hand without paying the cost. [Opponent's Turn] All of your Digimon with [Knightmon] in their texts gain <Reboot> and <Blocker>. --- [All Turns] [Once Per Turn] When any of your Digimon with [Knightmon] in their texts are played, <De-Digivolve 1> 1 of your opponent's Digimon.
Lv.5 Knightmon EX13-058 R
ultimate | Data | Warrior
{{DigivolveFromSupports|3|4|Knightmon}}
[When Attacking] [On Deletion] You may play or use 1 card with [Knightmon] in its text and a play or use cost of 4 or less from your hand without paying the cost.
[Opponent's Turn] All of your Digimon with [Knightmon] in their texts gain <Reboot> and <Blocker>.
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[All Turns] [Once Per Turn] When any of your Digimon with [Knightmon] in their texts are played, <De-Digivolve 1> 1 of your opponent's Digimon.Lv.5 ナイトモン EX13-058 R 完全体 | データ種 | 戦士型 【アタック時】【消滅時】自分の手札から、「ナイトモン」の記述がある登場/使用コスト4以下のカード1枚をコストを支払わず登場/使用できる。 【相手のターン】「ナイトモン」の記述がある自分のデジモン全ては≪再起動≫と≪ブロッカー≫を得る。 --- 【お互いのターン】[ターン1回]「ナイトモン」の記述がある自分のデジモンが登場したとき、相手のデジモン1体を≪退化1≫。