"Can you hear the gentle whisper of the wind?"
About Sylph Edit
Sylph is a new 5 star human creature added into the game along with the recent 8.0.0 update. Essentially, she is a a better "Abaddon", since she can last a bit longer due to her Dodge 9 ability; however, her cost is extremely high (22) for an unevolved creature, so that may turn a lot of people off from actually using her in their deck.
As of 11/19/2015, she is unobtainable, but will likely become available in a booster sometime soon. As of October 2016, this creature is available through Sky Arena.
Melding Ideas Edit
Although it will probably be difficult to meld her, I will provide some good melding options in case you get a few dupes: