Wyvern

Wyverns are ferocious dragon-like creatures. They are very territorial and, thus, lives a solitary life. Some wyverns are shown to be strong, fast and smart and very protective with their supply of food. White Wyverns, despite its appearance, are actually herbivores. However, this may not be true to other species.

A White Wyvern was able to temporarily hold its own against Natsu, Gray, and Erza's combined strenghts. Even using air pressure to reflect Natsu and Gray's attacks...

Wyvern species:

 * Green Wyvern
 * White Wyvern (also known as Blizzardvern)