Also how would it look or act (eg. sustained, missle, some fancy combination)
I was thinking about this a minute ago and I'd love to see a "darkfire" spell that does damage to health, stam, and magicka but for balancing purposes has a slightly higher magicka cost.
Anyone else have any?

I want to see a spell like the Beginning "Spray" spells, only doing more damage, so it's actually viable to use later on.

Single target "Bane of the Undead" spells

Hellball. :laugh:

funny, hellball does not do cold damage.

I want a "black hole" where it would conjure up a void that would svck enemies in and banish them to oblivion. It would be a master spell of course. Dual cast only. 700 mana to use.

An armor spell for Alteration between Ebonyskin and Dragonskin. Its frankly idiotic that the second best armor spell in the game is only 300 armor, and the best spell is a straight 80% damage reduction. It needs a Daedricskin spell for around 400 armor, and a complete reworking of Dragonskin because atm its a completely pointless spell that makes alteration perks for mage armor wasted perks.