Mirrorrorrim
Hero
They moved away from adding traits in places not on the individual stat block. I think that is good.My point was you can't have common dragon traits that every dragon has in one place. If there are any, they have to be repeated in every entry. Or demon trait.
1. One stat block for monster entry pages, and it is designed for easy Maps tool reference.
2. Not all dragons need to have the exact traits. For example, there are different age categories where this may vary anyway, and not all swim or shapechange or use magic.