10 cards where the name is exactly “mogg war marshal” and the Oracle ID is “7b8f4879-578e-40e4-863a-41d0c32c6bdd”

Mogg War Marshal (Secret Lair Drop #1618)
Mogg War Marshal (Dominaria Remastered #326)
Mogg War Marshal (Dominaria Remastered #131)
Mogg War Marshal (Time Spiral Remastered #176)
Mogg War Marshal (The List #EMA-139)
Mogg War Marshal (Eternal Masters #139)
Mogg War Marshal (Duel Decks Anthology: Elves vs. Goblins #45)
Mogg War Marshal (Modern Masters #122)
Mogg War Marshal (Duel Decks: Elves vs. Goblins #45)
Mogg War Marshal (Time Spiral #170)

The message was clear to Sorin—time to search for something else.