Q1: When this card in Breeding Area digivolves into a multi-colored Digimon card including black or yellow, does this card's Your Turn effect trigger?
No, it is not triggered. In the Breeding Area, only the effects of the Breeding icon can be triggered/activated.
Lv.3 KoKabuterimon BT18-057 C Rookie | Virus | Insectoid [Your Turn] [Once Per Turn] When this Digimon or any of your Tamers would digivolve into multicolor black or yellow Digimon cards, reduce the digivolution costs by 1. --- Inherited: <Blocker> (This Digimon can block in the blocker timing.)
Lv.3 KoKabuterimon BT18-057 C Rookie | Virus | Insectoid [Your Turn] [Once Per Turn] When this Digimon or any of your Tamers would digivolve into a multicolored Digimon that is black or yellow, reduce the digivolution cost by 1. --- Inherited: <Blocker> (At blocker timing, by suspending this Digimon, it becomes the attack target.)
Lv.3 コカブテリモン BT18-057 C 成長期 | ウィルス種 | 昆虫型 【自分のターン】[ターンに1回]このデジモンか自分のテイマーが黒/黄を含む多色のデジモンカードに進化するとき、支払う進化コスト-1。 --- Inherited: ≪ブロッカー≫(このデジモンはブロックタイミングでブロックできる)