Q1: If I use this card's End of Your Turn effect to unsuspend my Digimon with the Vortex Warriors trait, can I then activate Vortex on that Digimon?
Yes, you can. Vortex triggers simultaneously with End of Your Turn effects, therefore you can choose the activation order of these effects.
Q2: Can I activate Vortex on my Digimon with the Vortex Warriors trait, then activate this card's End of Your Turn effect?
Yes, you can. Vortex triggers simultaneously with End of Your Turn effects, therefore you can choose the activation order of these effects. In this case, you can activate Vortex and make an attack declaration, this card's effect that triggered simultaneously will activate, then the counter timing will occur.
Shoto Kazama EX7-064 R LIBERATOR [Start of Your Main Phase] If your opponent has a Digimon, gain 1 memory. [End of Your Turn] By suspending this Tamer, 1 of your Digimon gains <Piercing> and <Blocker> until the end of your opponent's turn. If it has the [Vortex Warriors] trait, it unsuspends. --- Inherited: -
Shoto Kazama EX7-064 R LIBERATOR [Start of Your Main Phase] If your opponent has a Digimon, gain 1 memory. [End of Your Turn] By suspending this Tamer, 1 of your Digimon gains <Piercing> and <Blocker> until the end of your opponent's turn. If it has the [Vortex Warriors] trait, it unsuspends. --- Inherited: [Security] Play this card without paying the cost.
Shoto Kazama EX7-064 R LIBERATOR [Start of Your Main Phase] If your opponent has a Digimon, gain 1 memory. [End of Your Turn] By suspending this Tamer, 1 of your Digimon gets <Piercing> and <Blocker> until the end of your opponent's turn. If that Digimon has the [Vortex Warriors] trait, unsuspend that Digimon.
風真照人 EX7-064 R リベレイター 【自分のメインフェイズ開始時】相手のデジモンがいるなら、メモリー+1。 【自分のターン終了時】このテイマーをレストさせることで、相手のターン終了まで、自分のデジモン1体は≪貫通≫と≪ブロッカー≫を得る。そのデジモンが特徴に「ヴォルテクスウォリアー」を持つなら、そのデジモンをアクティブにする。 --- Inherited: 【セキュリティ】このカードをコストを支払わずに登場させる。