

Q1: Can this card's On Play When Digivolving effect give "can't unsuspend" to a card that was not suspended by it?
Yes, it can.
Lv.6 Gryphonmon BT26-046 C Mega | Data | Mythical Beast/Iliad/TS When this card would be played, if there are 2 or more suspended Digimon, reduce the cost by 4. <Piercing> <Vortex> [On Play] [When Digivolving] Suspend 1 of your opponent's Digimon or Tamers. 1 of their Digimon or Tamers can't unsuspend until their turn ends. Then, 1 of your Digimon can't be deleted in battle until their turn ends. (Rule) Trait: Has [Avian] Type. --- ー
Lv.6 Gryphonmon BT26-046 C Mega | Data | Mythical Beast/Iliad/TS [Digivolve] Lv.5 w/[TS] trait: Cost 3 When this card would be played, if there are 2 or more suspended Digimon, reduce the cost by 4. <Piercing> <Vortex> [On Play] [When Digivolving] Suspend 1 of your opponent's Digimon or Tamers. 1 of their Digimon or Tamers can't unsuspend until their turn ends. Then, 1 of your Digimon can't be deleted in battle until their turn ends. (Rule) Trait: Has [Avian] Type. --- ー
Lv.6 Gryphonmon BT26-046 C mega | Data | Mythical Beast/Iliad/TS [Digivolve] Lv.5 w/[TS] trait: Cost 3 When this card would be played, if there are 2 or more suspended Digimon, reduce the cost by 4. <Piercing> (When this Digimon attacks and deletes an opponent's Digimon, it performs any security checks it normally would.) <Vortex> [On Play] [When Digivolving] Suspend 1 of your opponent's Digimon or Tamers. 1 of their Digimon or Tamers can't unsuspend until their turn ends. Then, 1 of your Digimon can't be deleted in battle until their turn ends. (Rule) Trait: Has [Avian] Type.
Lv.6 グリフォモン BT26-046 C 究極体 | データ種 | 幻獣型/イリアス/TS このカードが登場するとき、レスト状態のデジモンが2体以上いるなら、支払うコスト-4。 ≪貫通≫≪ヴォルテクス≫ 【登場時】【進化時】相手のデジモン/テイマー1体をレストさせる。相手のターン終了まで、相手のデジモン/テイマー1体はアクティブにならない。その後、相手のターン終了まで、自分のデジモン1体はバトルで消滅しない。 〈ルール〉特徴:タイプ「鳥型」を持つ。 --- ー