<P> In 5th Edition, the skills are more tightly tied to the ability scores, with each skill being seen as an area of specialization within the ability . Any skill check may be attempted by any character, but only characters that have proficiency in the specific skill area apply their proficiency bonus (a flat bonus tied to character level) to those particular skill checks . Characters gain proficiencies from their race, class, and character background, with additional proficiencies added by some feats . </P> <P> A skill check is always a d20 roll, with bonuses added . Sometimes, a skill check may be aided by favorable circumstances (such as you brandishing a weapon while using Intimidate) or hampered by unfavorable circumstances (such as using improvised tools to pick a lock). </P> <P> A "check" is successful when the roll is higher than or equal to the difficulty class (DC) of the task . Usually, the Dungeon Master sets the DC . Sometimes the DC is set by the result of something else's check, this is an "opposed check". An example of an opposed check is spot against stealth: the character is trying to see something else that is trying not to be seen . </P> <P> Feats were introduced in 3rd edition of Dungeons & Dragons . A feat is an advantage, often some special option for the character (such as a special combat maneuver) or some modification to game options and the mechanics involved . Feats can be contrasted with skills, which were also introduced in the same edition, in that using a feat does not usually require the particular success / fail roll that skills do . Instead of possessing a certain rank at a skill, a character either possesses a feat or does not . Many feats require certain prerequisites (such as related feats or minimum ability scores) in order to select that feat . </P>

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