how to deal with a dragons high attack roll

[Vedhin]

Haha, in the games I've played, all my dragons are always highly proud of their element and consider others far inferior, never deigning to substitute mighty fire for a piddling chilly breeze.

You've obviously never met a red dragon painted white living in an ice cave. Or a white dragon painted red living in a volcano. They use Bluff and breath weapon substitution to make you think they are actually whatever color they're painted.