Q1: Does the effect of this card add the target card to the hand and place it under the tamer, if possible, if there is a target card among those revealed from the deck?
Yes, add it to your hand whenever possible and place it under tamer.
Q2: Can the On Deletion effect of this card be placed under a tamer when there is only one card with "Twilight" in the revealed or trait with the "Nightmon" text?
No, you cannot. If there is only one card, the card is added to the hand.
Lv.3 Monitamon BT19-055 C Rookie | Data | CRT/Twilight/Xros Heart [On Deletion] Reveal the top 3 cards of your deck. Among them, add 1 card with [Knightmon] in its text or the [Twilight] trait to the hand and place 1 such card under your Tamers. Return the rest to the bottom of the deck. --- Inherited: <Reboot> (This Digimon also unsuspends in your opponent's unsuspend phase.)
Lv.3 Monitamon BT19-055 C Rookie | Data | CRT/Twilight/Xros Heart [On Deletion] Reveal the top 3 cards of your deck. Among them, add 1 card with [Knightmon] in its text or the [Twilight] trait to the hand and place 1 such card under your Tamers. Return the rest to the bottom of the deck. --- Inherited: <Reboot> (This Digimon also unsuspends in your opponent's unsuspend phase.)
Lv.3 Monitamon BT19-055 C Rookie | Data | CRT/Twilight/Xros Heart [On Deletion] Reveal the top 3 cards of your deck. Among them, add 1 card with [Knightmon] in its text or the [Twilight] trait to the hand and place 1 such card under your Tamers. Return the rest to the bottom of the deck. --- Inherited: <Reboot>.
Lv.3 モニタモン BT19-055 C 成長期 | データ種 | ブラウン型/トワイライト/クロスハート 【消滅時】自分のデッキの上から3枚オープンする。その中の「ナイトモン」の記述があるか特徴に「トワイライト」を持つカード1枚を手札に加え、1枚を自分のテイマーの下に置く。残りはデッキの下に戻す。 --- Inherited: ≪再起動≫(このデジモンは相手のアクティブフェイズでもアクティブになる)