Does Angel's Diving Catch trigger when a card effect discards it from the top of your deck, and when a game rule discards it?

Question

Accepted Answer

Yes when a card effect forces the discard, including from the top of your deck. No when a game rule causes the discard, because the card's effect applies only to discards that a card effect forces.

Legendary: A Marvel Deck Building Game

Does Angel's Diving Catch trigger when a card effect discards it from the top of your deck, and when a game rule discards it?