Fulminator is an addon for Elemental Shamans that provides spell overlay effects for Fulmination by using the Blizzard spell overlays added in 4.0.1. Overlays can be enabled and disables separately.
The overlay is shown when Lightning Shield has reached a certain amount of stacks (customizable, default 9). Overlay appears after a short while or when you cast Earth Shock.
Lava Surge overlay support was dropped in version 1.4 as it is now (WoW version 5.0) included in the game by default.
All settings can be found in the AddOn options panel.
Please post any bugs, issues or suggestions in the comments, and thank you for using Fulminator!