Celestial Explosion aka Almagest:
http://www.youtube.com/watch?v=cP0MuWJNY1w
Explosive fireball:
http://www.youtube.com/watch?v=UZ633IDpyuo
Fire vortex:

Fireball:

Fireball(deprecated):

Flame aura(generated procedurally for any sprite):



Flame wings:

Cold variant:

Sun aura:

Explosion shockwave:

Not a fire effect but still:

Probably my favourite shader, no one knows what that is:

Healing shader:

Lightning shield:

Runic shields:

Target shader:

Explosion(still under development):

Minor flame aura effect:

Circular flame aura effect:

Double circle flame aura(flames of ur'hok?):

Double opposing flame aura:

Resources may be outdated and the most recent effects were integrated straight into the game without posting them to the forum so no resources are listed for them.
Now the shaders + particles(sometimes necessary) for each of those:
Circular flame:
https://dl.dropboxusercontent.com/u/256 ... hield.frag
https://dl.dropboxusercontent.com/u/256 ... shield.lua
Double circular flame:
https://dl.dropboxusercontent.com/u/256 ... hield.frag
https://dl.dropboxusercontent.com/u/256 ... shield.lua
Double opposing flame:
https://dl.dropboxusercontent.com/u/256 ... hield.frag
https://dl.dropboxusercontent.com/u/256 ... shield.lua
Minor flame aura:
https://dl.dropboxusercontent.com/u/256 ... hield.frag
https://dl.dropboxusercontent.com/u/256 ... shield.lua
Flame wings:
https://dl.dropboxusercontent.com/u/256 ... hield.frag
https://dl.dropboxusercontent.com/u/256 ... shield.lua
Explosion shockwave:
https://dl.dropboxusercontent.com/u/256 ... hield.frag
https://dl.dropboxusercontent.com/u/256 ... shield.lua (numerous uniforms)
Now the textures. Every effect can use a texture like this one:

https://dl.dropboxusercontent.com/u/256 ... ireALL.png
Here's the list of universal textures that can be used with any shader:
https://dl.dropboxusercontent.com/u/256 ... 0flame.png
https://dl.dropboxusercontent.com/u/256 ... 0flame.png
https://dl.dropboxusercontent.com/u/256 ... 0flame.png
https://dl.dropboxusercontent.com/u/256 ... 0flame.png
And the effects that are using two colors(like double circle and opposing flames shield) use textures like this:

https://dl.dropboxusercontent.com/u/256 ... etest3.png
I had to use such double textures because using a white texture and applying a color to it in shader turned out lame.
Effects that come with unique textures:
Advanced fireball:
https://dl.dropboxusercontent.com/u/256 ... hield.frag
https://dl.dropboxusercontent.com/u/256 ... shield.lua
https://dl.dropboxusercontent.com/u/256 ... hield2.png
https://dl.dropboxusercontent.com/u/256 ... th_red.png (alternative texture)
Sun aura:
https://dl.dropboxusercontent.com/u/256 ... 20ring.png
https://dl.dropboxusercontent.com/u/256 ... hield7.png
Explosion:
https://dl.dropboxusercontent.com/u/256 ... hield.frag
https://dl.dropboxusercontent.com/u/256 ... shield.lua
https://dl.dropboxusercontent.com/u/256 ... hield2.png
Whirlwind/Bladestorm:
https://dl.dropboxusercontent.com/u/256 ... lames.frag
https://dl.dropboxusercontent.com/u/256 ... nd/ice.lua
https://dl.dropboxusercontent.com/u/256 ... flames.lua
https://dl.dropboxusercontent.com/u/256 ... eneric.png
Fire vortex:
https://dl.dropboxusercontent.com/u/256 ... hield7.png
https://dl.dropboxusercontent.com/u/256 ... shield.lua
https://dl.dropboxusercontent.com/u/256 ... hield.frag