Events are when a player attempts to do something that has a probability of failure.
Handling Events
1) Establish a Challenge Rating for the event. 0 would be the easiest of all challenge ratings while there is no upper limit on difficulty.
2) Roll a d20.
3) Add (+5) to the roll for each advantage a player has. Advantages are determined by attributes. So if the event is shooting a target from a distance, the character would gain advantages from the Ranged Proficiency attribute.
4) If the roll with added advantages is higher than the Challenge Rating, the player succeeds.
Fumbles and Criticals
The M* may reward/punish rolling natural 1's and 20's with extreme success or humiliating failure.