The item in question:
Contrast with this excerpt from the Monster Manual, which says:Q: Can a Dragonfire Adept (Dragon Magic p24) use their breath weapon while in a grapple?
A: Page 60 of the Rules Compendium outlines a series of maneuvers that can be used while you are in a grapple. Unfortunately, using a supernatural attack it not one of them. Some Dungeon Masters may allow you to use your breath weapon in the same way you would cast a spell while in a grapple, but you will need to check with your DM to see how they want to handle it.
A dragon can always use its breath weapon while grappling, as well as its spells and spell-like or supernatural abilities, provided it succeeds on Concentration checks.I always assumed this was an elaboration of the general rules, not a dragon-specific ability. Since there are other areas where the Rules Compendium contradicts the RAW (such as whether racial modifiers stack), I'm wondering whether this was supposed to be errata, an intentional rules change, or a mistake.
