you get a different breath weapon depending on the type of dragon. 

you have a 15ft fly speed but you can only stay flying for 2 rounds (12 seconds)

you permanently have 2 mage hand that you can control unless they go more than 5ft away from you 

you can move your tail around giving you the following benefits.

you can attack as a bonus action for 1d4 damage.

it can lift 50lbs by itself and not weigh you down.