Valpiedra: Descensus ad tenebras

No. Each die showing 1, 2, or 3 deals 1 damage; a creature ignores dice matching its Defense value. A creature that survives your attack counterattacks for 1 damage, even if your attack dealt no damage (pp. 11, 13).

No. You deal 1 extra damage for each matching Vulnerability icon on your hero or their active equipment. (p. 13)

No. Level-card Evil and Pursuit effects are resolved starting in the second combat round, not the first. At the end of each round, however, Evil still increases by 1 for each creature on your level that has no damage. (pp. 9, 12, 14)

No. Each defeated creature can be used once: either equip its loot or spend it as experience, never both. Any unused experience or equipment is lost when the Rest Phase ends. (pp. 16, 18)

Yes. Clearing all damage summons a face-down creature of the indicated black rank at every other level—the levels where your heroes are not present. Increasing Health is a separate Camp option and costs the experience shown on the Valpiedra card. (p. 15)

No. After gaining the Relic in Level IV, the heroes must ascend back to Valpiedra and complete the Rest Phase there to win. (pp. 5, 10)