Weisslogia

Weisslogia (バイスロギア Baisurogia) is a Dragon known as The White Dragon, and the foster parent of Sting Eucliffe.

History
Sometime during its life, Weisslogia taught Sting how to use a Magic used to slay dragons known as Dragon Slayer Magic. White Dragon Slayer Magic gave Sting the ability to have characteristics of Weisslogia itself. However, Sting then killed Weisslogia with the reason of finally becoming a "true" Dragon Slayer.