Egon, God of Death // Throne of Death

If an effect allows you to play a specific modal double-faced card, you may cast it as a spell or play it as a land, as determined by which face you choose to play. If an effect allows you to cast (rather than "play") a specific modal double-faced card, you can't play it as a land.

A modal double-faced card can't be transformed or be put onto the battlefield transformed. Ignore any instruction to transform a modal double-faced card or to put one onto the battlefield transformed.

Although players may respond to Throne of Death's activated ability, they can't respond to the paying of its activation cost. The creature card will already be exiled by the time anyone can respond.