

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, 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.
Q2: Can this card's On Play When Digivolving effect suspend a different card from the one that's given "can't unsuspend until the end of their turn"?
Yes, it can.
Lv.6 VenomMyotismon EX10-054 R
Mega | Virus | Dark Animal
{Trash} [Main] By deleting 1 of your level 5 Digimon with [Myotismon] in its text, play this card with the play cost reduced by 7.
[On Play] [When Digivolving] You may suspend 2 of your opponent's Digimon or Tamers. Then, 2 of their Digimon or Tamers can't unsuspend until their turn ends.
[On Deletion] Delete 1 of your opponent's suspended Digimon.
---
Lv.6 VenomMyotismon EX10-054 R
Mega | Virus | Dark Animal
{Trash} [Main] By deleting 1 of your level 5 Digimon with [Myotismon] in its text, play this card with the play cost reduced by 7.
[On Play] [When Digivolving] You may suspend 2 of your opponent's Digimon or Tamers. Then, 2 of their Digimon or Tamers can't unsuspend until their turn ends.
[On Deletion] Delete 1 of your opponent's suspended Digimon.
---
-Lv.6 VenomMyotismon EX10-054 R mega | Virus | Dark Animal [Trash] [Main] By deleting 1 of your level 5 Digimon with [Myotismon] in its text, play this card with the play cost reduced by 7. [On Play] [When Digivolving] You may suspend 2 of your opponent's Digimon or Tamers. Then, 2 of their Digimon or Tamers can't unsuspend until their turn ends. [On Deletion] Delete 1 of your opponent's suspended Digimon.
Lv.6 ヴェノムヴァンデモン EX10-054 R
究極体 | ウィルス種 | 魔獣型
{トラッシュ}【メイン】「ヴァンデモン」の記述があるLv.5の自分のデジモン1体を消滅させることで、このカードを支払う登場コスト-7で登場させる。
【登場時】【進化時】相手のデジモン/テイマー2体をレストできる。その後、相手のターン終了まで、相手のデジモン/テイマー2体はアクティブにならない。
【消滅時】レスト状態の相手のデジモン1体を消滅させる。
---