The GM can ask the players to make skill checks whenever the GM feels appropiate or when certain mechanics call for it.
A skill check is not needed if the trained level matches the DC as follow and they are considered to have automatically succeeded. Players can choose to roll to attempt a critical success if applicable and the GM allows but the dice result would override this.
| Proficiency Tier | DC |
| Trained | 5 |
| Expert | 10 |
| Master | 15 |
| Legendary | 0 |