Difficulty Class
Term
The 
Game Master determines the Difficulty Class of an Challenge Roll and can override a DC specified in the rules. The 
Typical Difficulty Class table shows the most common DCs. The default DC for a check is 15, and it is rarely worth calling for an 
Skill Roll if the DC is as low as 5, unless the potential failure is narratively interesting.
Typical Difficulty Class
| Task Difficulty | DC |
|---|---|
| Very Easy | 5 |
| Easy | 10 |
| Medium | 15 |
| Hard | 20 |
| Very Hard | 25 |
| Nearly Impossible | 30 |
d100
Mod
ADV/DIS