The mod is already fixed and ready for use! added some little details :)
*Isn't lorefriendly for now though in future I could add a story with lorefriend aspects, as the spell fx is similar to the new Necromancer class spell at ESO, named Bruning Skull so Death Coil could be a kind of variant of such spell.

Use it for fun, enjoy :)

Brief story:


An Imperial Necromancer named Calvarious Darkforges on his journey
looking for power he got access to an ancestral knowledge, discovers
a powerfull but evil spell named Death Coil, it supposed the spell
comes from other plane where Necromancers and Death Knights cast it
as one of his more powerful destruction spells against his enemies


Features of the Spell:

Throws a green projectile skull to the target doing 100 point of damage
and cost 100 of maná to cast approx. 

It have some cool stuffs, when impact on targets you will see a blood
splatter also blood on the floor and have sound, yes customized sound
those are based on the true Death Coil spell from Warcraft universe
so the spell sounds like the true Death Coil spell from the Death Knight
from Warcraft 3

The skull (spell tome) have a value of 666 septims (gold)

The spell uses conjuration school so you will raise conjuration
skill while destroy your enemies!

On your magic inventory will see it as oghma infinium
If you drop the skull (spellbook) to the world, you will see the
glowing skull

The minimum requisites to cast the spell are 0 so, anyone can
start picking the skulls and start your evil purposes, of course
If you have the maná...

2.0 Version, Update:

- Now you have a skill book what increases the skill conjuration, in the shape
of the skull projectile, works as a book so when you pick it you need to press "E"
again to pick it up (dont worry is normal), you can see the skull on your inventory
and put it on the world, have a vale of 1000 gold

- Now the Spell tome: Death Coil have a custom texture on the worldmap and on the
invenory.

- Added a loud sound effect on impact, the characteristic sound effect from Warcraft 3
Death Coil

Enjoy :)



Where to find it:

On Riverwood near the entrance on the camp site
you will find two glowing skulls!!



Installation:

I recommend use Nexus Mod Manager, just download the file and load it to NMM, then activate it on your mod list.



Videos:



New Version 2.0:

From Wacraft III:






Credits:

- I thank you to Elias555 for the mesh of the skull, I use his Quan chi mod and create a new spell from the skull projectile, thanks a lot!
- Bethesda
- Blizzard




By Maredark3d (Medieval)


If you love Elder Scrolls so much as me, you can contact me, feel free to do it, send me a message by Nexus or add me to Steam, here is my Steam profile: http://steamcommunity.com/id/medieval3d/

I hope you like this mod, is made it with devotion :), dealing with Creation kit, took me some time, but I did it. I'm starting to understand very well Creation Kit and other tools as Nifkcope and some 3D software,

I plan to create more versions of this spell, for example I wish to create the same spell but add a second effect what give life to the caster
Also I'm plan to create other skills of the Death Knight just based on Warcraft 1,2 and 3 (not WoW), so I will see what can I do

If you have some ideas, comments, feedback, etc. Feel free to do it!! :) And upload your pics or videos If you wish!


Regards!