When Karakos enters the battlefield, if it was cast for its miracle cost, exile all non-land permanents your opponents control. Otherwise exile it.

Forecast — {B}{R}; Reveal Karakos, the Struggling God from your hand: Each opponent exiles a creature they control, then shuffle this card from your hand into your library. Draw a card.

Miracle; Return 3 exiled creatures to their owners graveyards.