2.4[]
Combat pet mechanics have been changed - there is a blue post that addresses this.
http://forums.worldofwarcraft.com/thread.html?topicId=5591169685&pageNo=1&sid=1#5
MikeKozar 06:48, 7 April 2008 (UTC)
Tested this dragonling on 9/08/2008, level of the dragon is capped at 50. The item itself requires Engineering 250 to use, which would be consistent summon level. VictorTyne (talk) 14:53, 8 October 2008 (UTC)