Blue dragons are the second most powerful of the classic chromatic dragons. They are physically distinguished by the single large horns protruding from their heads and also by their ears, which are rather large and frilled. The tail is thick and bumpy, like that of a caterpillar. The wings are more pronounced than most other species'. They smell like ozone or sand.
They are more likely to be mocking and manipulative than outrightly cruel or murderous to 'lesser' creatures, aided greatly by their natural talents for hallucination. They are infamous for tricking desert travelers into drinking sand or going miles out of their way to avoid nonexistent dust basins.