Difficulty Class

is a game mechanic that changes the difficulty of various checks.
== Game Mechanics ==
The DM sets a Difficulty Class (commonly abbreviated DC) per skill check or attack that a character makes. The DM may or may not declare the DC to the players. The DC is a number that must be met or beaten for the character to succeed on the roll. For example, if the DC for a Stealth check is 15, and the character has a +5 to the Stealth skill, the player must roll a 10 or better to succeed on the check.
As of 2nd Edition, DC has changed how it works slightly and is tied into Degrees of Success.
Category: Game Mechanics