- Difficulty is determined by number of successes needed before three failures
- Three failures ends the skill challenge
- DC for each challenge is determined by the DM based on how difficult the task might be
- Players can only use skills they're proficient in and only once per challenge (other players may use those same skills)
- Players are encouraged to think of obstacles that might emerge and how they're skill would help conquer it
- Players can spend resources (special abilities, spells, hit dice, etc.) to get advantage on the check