The effect of "If you have [Okuwamon]
in its digivolution cards" does that mean I can activate the effect, if I have cards with the [X Antibody] trait in its digivolution cards?
No, you can’t because this effect specifies the card name and it’s required to meet the condition you have cards with [Okuwamon] or [X Antibody] in its digivolution cards. It does not refer to the traits of the cards.