Checks have a Difficulty Value (DV), marked with a name and value. There are seven ranks of difficulty, with Standard (10) and Difficult (15) being most common:

• Trivial (0)
• Easy (5)
• Standard (10)
• Difficult (15)
• Daunting (20)
• Epic (25)
• Impossible (30)

Additional rulings:

• The difficulty cannot go past Trivial (0) or Impossible (30).
• Generally, Trivial and Impossible checks are not rolled unless the GW calls for it. Otherwise, Trivial checks always succeed, while Impossible checks always fail.