Altaria

Altaria seems like a great choice in a tier with few Dragon-type Pokemon. However, past its appealing defensive stats, there is little incentive to use it. Altaria has horrible weaknesses to Rock- and Ice-type attacks that curb its otherwise great bulk immensely. A Dragon Dance set with Altaria seems promising, but then you compare it to Fraxure and Dragonair, and it simply pales in comparison; Fraxure has more power, whilst Dragonair has Extreme Speed and isn't weak to Stealth Rock. Still, Altaria does have unique access to supportive and defensive options such as Heal Bell and Roost, as well as Leftovers (as its competition needs Eviolite to function). It's also the only specially based Dragon-type Pokemon in NU, and powerful moves such as Draco Meteor and Fire Blast make up for its poor offensive stats. Overall though, Altaria is still a rather lackluster choice.