Rulings
Q1: There is a situation in which there is one "red and blue Digimon" and one "red and yellow tamer" of opponent in the Battle Area. If I activate the INHERITED effect of this card, how many cards will I trash from the top of my deck?
Three cards. In this situation, since the colors of the opponent's Digimon and tamer are "red, blue, and yellow", you trash the top 3 cards of your deck.
Data Sources
A
Official English (Asia) Card Listen.digimoncard.com
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.
W
DCG Wikidigimoncardgame.fandom.com
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.
JP
Official Japanese Card Listdigimoncard.com
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。