trapped entry — each player loses 1 life. (leads to: veils of fear, oubliette)
veils of fear — each player loses 2 life unless they discard a card. (leads to: sandfall cell)
sandfall cell — each player loses 2 life unless they sacrifice a creature, artifact, or land. (leads to: cradle of the death god)
oubliette — discard a card and sacrifice a creature, an artifact, and a land. (leads to: cradle of the death god)
cradle of the death god — create the atropal, a legendary 4/4 black god horror creature token with deathtouch.
