Can't cast Boom // Bust exiled with Unstable Amulet

[NapoleonBorn2Party]

When the card Boom // Bust gets exiled to the Unstable Amulet activated ability, you can't cast it from exile

[xenohedron]

Interesting, @Susucre wrote a unit test for split cards with unstable amulet

[jeffwadsworth]

[[Unstable Amulet]]

[github-actions[bot]]

Unstable Amulet - (Gatherer) (Scryfall) (EDHREC)

{1}{R} Artifact When Unstable Amulet enters the battlefield, you get {E}{E} (two energy counters). Whenever you cast a spell from anywhere other than your hand, Unstable Amulet deals 1 damage to each opponent. {T}, Pay {E}{E}: Exile the top card of your library. You may play it until you exile another card with Unstable Amulet.