Rulings
Q1: If the 3 cards I reveal from my deck for this card's effect include only either a Digimon card with Kyubimon, Taomon, or {{EffectLinkArchetype|Sakuyamon}} or Rika Nonaka or 1 Option card with a cost of 2 or more, can I just add that 1 card to my hand?
Yes, even if you only reveal one of the applicable cards, you can still add it to your hand.
Q2: If the 3 cards I reveal from my deck for this card's effect include both a Digimon card with Kyubimon, Taomon, or {{EffectLinkArchetype|Sakuyamon}} and Rika Nonaka or 1 Option card with a cost of 2 or more, can I choose to only add one of them to my hand, and place the remaining cards at the bottom of my deck?
No. If you have cards that are targets of this effect, you must add as many cards to your hand as possible.
Q3: If I activate an effect that reduces the cost of an Option card with a cost of 2 or more and I only pay a cost of 1, or if I do not pay the cost at all by activating an effect that allows me to use an Option card without paying the cost, does this card's inherited effect activate?
Yes, as long as the Option card you use has a cost of 2 or more, this card's inherited effect activates regardless of the actual cost paid.
Q4: Does this card's inherited effect activate if I use an Option card when it has a cost of 1 or less due to a "reduce the cost of this card in the hand by 1" effect on a card such as such as BT2-099 Glorious Burst or BT8-097 Crimson Blaze?
No, it doesn’t activate. It doesn't activate if the cost of an Option card consistently changes when it's in the hand and becomes 1 or less due to that card's effect.
Data Sources
Lv.3 Renamon BT17-031 C Rookie | Data | Beastkin [On Play] Reveal the top 3 cards of your deck. Add 1 Digimon card with [Kyubimon], [Taomon] or [Sakuyamon] in its name, and 1 [Rika Nonaka] or 1 Option card with a cost of 2 or more among them to the hand. Return the rest to the bottom of the deck. --- Inherited: [Your Turn] [Once Per Turn] When you use an Option card with a cost of 2 or more, 1 of your opponent's Digimon gains <Security A. -1> until the end of their turn.
Lv.3 Renamon BT17-031 C Rookie | Data | Beastkin [On Play] Reveal the top 3 cards of your deck. Add 1 Digimon card with [Kyubimon], [Taomon] or [Sakuyamon] in its name, and 1 [Rika Nonaka] or 1 Option card with a cost of 2 or more among them to the hand. Return the rest to the bottom of the deck. --- Inherited: [Your Turn] [Once Per Turn] When you use an Option card with a cost of 2 or more, 1 of your opponent's Digimon gains <Security A. -1> until the end of their turn.
Lv.3 Renamon BT17-031 C Rookie | Data | Beastkin [On Play] Reveal the top 3 cards of your deck. Add 1 Digimon card with [Kyubimon], [Taomon] or [Sakuyamon] in its name, and 1 [Rika Nonaka] or 1 Option card with a cost of 2 or more among them to the hand. Return the rest to the bottom of the deck. --- Inherited: [Your Turn] [Once Per Turn] When you use an Option card with a cost of 2 or more, 1 of your opponent's Digimon gains <Security A. -1> until the end of their turn.
Lv.3 レナモン BT17-031 C 成長期 | データ種 | 獣人型 【登場時】自分のデッキの上から3枚オープンする。その中の名称に「キュウビモン」/「タオモン」/「サクヤモン」を含むデジモンカードと「牧野留姫」か使用コスト2以上のオプションカード1枚ずつを手札に加える。残りはデッキの下に戻す。 --- Inherited: 【自分のターン】[ターンに1回]自分が使用コスト2以上のオプションカードを使用したとき、相手のターン終了まで、相手のデジモン1体に≪Sアタック-1≫を与える。