Do staircases stay in Skull Cavern?
Do staircases stay in Skull Cavern? Staircases work just like the game-supplied down-ladders. Each one works only for one use. Leaving the mine or returning to a higher floor will result in the staircase being permanently gone. In addition, once a staircase has been placed, it cannot be picked up again, even if it has not been used.
How does luck affect Skull Cavern?
Luck in Skull Caverns mostly affects a) the number of ladders you find, and b) the number of treasure rooms (but not the items in them). Specifically, ladders are affected by both daily luck and luck buff, treasure rooms are increased slightly by daily luck but mostly by luck buff.