Storm Wyrm

Storm Wyrms are thunder lizard creeps that can be encountered in many tilesets. They are the strongest variant the creeps family.

An Ancient Storm Wyrm could be found in The Druids Arise.

In the RPG
Storms Wyrms are powerful cousins to thunder and lightning lizards. Some tauren believe that mighty sky spirits dwell in the most powerful of earthly creatures, the fusion of sky and earth taking the shape of storm wyrms.