Q1: My opponent has 1 red and blue Digimon and 1 red and yellow Tamer in their battle area. How many cards do I trash from the top of my deck when this card's inherited effect activates?
3 cards. In this case, there are 3 colors (red, blue, and yellow) in your opponent's Digimon and Tamers, therefore you trash 3 cards from the top of your deck.
Lv.2 Frimon BT18-006 U In-Training | Lesser | - - --- Inherited: [On Deletion] For each color your opponent's Digimon and Tamers have, trash the top card of your deck.
Lv.2 Frimon BT18-006 U In-Training | Lesser - --- Inherited: [On Deletion] For each color your opponent's Digimon and Tamers have, trash the top card of your deck.
Lv.2 Frimon BT18-006 U In-Training | Lesser --- Inherited: [On Deletion] Trash the top card of your deck for each color of your opponent's Digimon and Tamers.
Lv.2 フリモン BT18-006 U 幼年期 | レッサー型 - --- Inherited: 【消滅時】相手のデジモン/テイマーの色1色ごとに、自分のデッキの上から1枚破棄する。