Q1: If I counter-timed this card to "blast digivolve", can I digivolve it under the DNA digivolution requirements for this card?
No, I cannot.
Q2: This card has multiple effects that are triggered when it attacks, in what order can they be activated?
Since they are triggered simultaneously, the player can choose the order in which they are to be activated.
Lv.7 Jesmon GX ACE BT20-021 SR Mega | Data | Holy Warrior/X Antibody/Royal Knight [DNA Digivolve] Lv.6 w/[Jesmon] in name + Lv.6 w/[Gankoomon] in name: Cost 0 [Hand] [Counter] <Blast Digivolve> (One of your Digimon may digivolve into this card without paying the cost.) [On Play] [When Digivolving] [When Attacking] [Once Per Turn] By placing 1 [Royal Knight] trait card from your hand or trash as this Digimon's bottom digivolution card, delete 1 of your opponent's Digimon with as much or less DP as this Digimon. [When Attacking] [Once per Turn] This Digimon unsuspends. Then, for every 2 [Royal Knight] trait cards in this Digimon's digivolution cards, trash your opponent's top security card. --- Inherited: <Overflow (-5)> (As this card moves from the field or under a card to an area other than those, lose 5 memory.)
Lv.7 Jesmon GX ACE BT20-021 SR Mega | Data | Holy Warrior/X Antibody/Royal Knight {{DNADigivolveFromArchetype|0|6|Jesmon|6|Gankoomon}} [Hand] [Counter] <Blast Digivolve> (One of your Digimon may digivolve into this card without paying the cost.) [On Play] [When Digivolving] [When Attacking] [Once Per Turn] By placing 1 [Royal Knight] trait card from your hand or trash as this Digimon's bottom digivolution card, delete 1 of your opponent's Digimon with as much or less DP as this Digimon. [When Attacking] [Once Per Turn] This Digimon unsuspends. Then, for every 2 [Royal Knight] trait cards in this Digimon's digivolution cards, trash your opponent's top security card. --- Inherited: <Overflow (-5)> (As this card moves from the battle area or under a card to another area, lose 5 memory.)
Lv.7 ジエスモンGXACE BT20-021 SR 究極体 | データ種 | 聖騎士型/X抗体/ロイヤルナイツ 〔ジョグレス〕名称に「ジエスモン」を含むLv.6+名称に「ガンクゥモン」を含むLv.6:コスト0 [手札]【カウンター】≪ブラスト進化≫(自分のデジモンをこのカードにコストを支払わずに進化できる) 【登場時】【進化時】【アタック時】[ターンに1回]自分の手札/トラッシュから、特徴に「ロイヤルナイツ」を持つカード1枚をこのデジモンの進化元の下に置くことで、このデジモンのDP以下の相手のデジモン1体を消滅させる。 【アタック時】[ターンに1回]このデジモンをアクティブにする。その後、このデジモンの進化元の特徴に「ロイヤルナイツ」を持つカード2枚ごとに、相手のセキュリティを上から1枚破棄する。 --- Inherited: ≪オーバーフロー《-5》≫(エリアかカードの下から、それ以外の場所に送られる場合、メモリー-5)