

Q1: Can the Digimon that digivolves into a Digimon card in my hand for this card's On Play Main effect be a Digimon other than the top card placed as the bottom digivolution card?
Yes, it can.
Koh & Sayo EX5-064 R Light Fang [Start of Your Turn] If you have 2 or fewer memory, set it to 3. [On Play] [Main] By suspending this Tamer and placing the top card of one of your [Light Fang] or [Night claw] trait Digimon as that Digimon's bottom digivolution card, 1 of your Digimon may digivolve into a Digimon card in your hand without paying the cost. --- [Security] Play this card without paying the cost.
Koh & Sayo EX5-064 R Light Fang [Start of Your Turn] If you have 2 or fewer memory, set it to 3. [On Play] [Main] By suspending this Tamer and placing the top card of one of your [Light Fang] or [Night claw] trait Digimon as that Digimon's bottom digivolution card, 1 of your Digimon may digivolve into a Digimon card in your hand without paying the cost. --- [Security] Play this card without paying the cost.
Koh & Sayo EX5-064 R Light Fang [Start of Your Turn] If you have 2 or less memory, set it to 3. [On Play] [Main] By suspending this Tamer and placing the top card of one of your [Light Fang] or [Night Claw] trait trait Digimon as that Digimon's bottom digivolution card, 1 of your Digimon may digivolve into a Digimon card in your hand without paying the cost. --- [Security] Play this card without paying the cost.
コウ&サヨ EX5-064 R ライトファング 【自分のターン開始時】メモリーが2以下なら、3にする。 【登場時】【メイン】このテイマーをレストさせ、特徴に「ライトファング」/「ナイトクロウ」を持つ自分のデジモンに重ねられているカードを上から1枚そのデジモンの進化元の下に置くことで、自分のデジモン1体を手札のデジモンカードにコストを支払わずに進化できる。 --- 【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。