Shin Okada
Explorer
Unless a Dragon has Eschew Materials feat, it still need to carry material components in person or be touching the materials. How are you DMs handling this? Do you let it carry a dragon-sized material component pouch? Or do you just let him sit on a pile of various materials? But in the latter way, a dragon can't cast most of the spells when he is flying or otherwise not sitting on that pile. Giving Eschew Materials feat could be a way, but I am still running a "3.0e Core Rules Only" campaign and do not let a monster taka a feat which is not available to PCs.