Sensory Stone

Sensory Stone is an Act 3 event where the player touches a mysterious stone that asks them to recall a memory. You are shown 3 cards briefly and must then select those same cards from a larger pool of options from memory. Successfully recalling all cards adds them to your deck. Failing adds a Regret curse instead.

Sensory Stone is a test of short-term memory. The brief display window requires quick memorization of all three cards. Succeeding adds three free cards to your deck — potentially very valuable if they are Rare or Uncommon cards relevant to your build. Failing adds a Regret curse (an Unplayable card that deals 1 damage per card in hand at end of turn), which is a significant penalty. Taking your time to memorize the cards before the timer runs out is the key to success.