I wanted to build a dragon with a lot of flexibility without using technic or bionicle and I also wanted to build a small dragon so I killed two birds with one stone. For the design, I went with an idea I had for a Dark/Dragon Pokemon back when Gold version came out.
Name : Echodrake (evolves from Echowyrm lvl. 50)
Type : Dark/Dragon
Height : 8'6"
Length : 25'3"
Weight : 645.0 lbs.
Moves : Dragondodge, Dragonbreath, Crunch, Screech
Ability : Keen Eye - Prevents loss of accuracy.
More than twice the size of its earlier forms, Echodrake retains its incredible speed and agility. Though its diet consists mainly of fish, Echodrake leaves the caves it lives in by night to supplement its diet with livestock such as Mareep and Doduo.
Echodrake are fiercely territorial and will hide its food from other Echodrakes. Here we see one eating a Mareep.
In profile from above he ended up resembling the Night Fury from Dreamworks' How to Train Your Dragon.