Changes

===Blood Boil===

An odd sort of proximity-based magical attack. When cast with enemies nearby, they would take huge damage, as though their blood was boiling from within. Presumably it did not work on undead, since skeletons pretty clearly lack blood.

===Blood Ritual===

A spell-casters aid, this one transferred health points to mana points. It's interesting to think who would use this in the final game. Sorcerers wouldn't much bother, since they have such high mana and low hit points anyway. Rogues, before going into mini-mage mode? Bards?

===Doom Serpents===

This one summoned two serpents from out of the ground, which then slithered over to attack nearby targets. They did not attack the Undead. The graphics were not finished, and it's hard to see who would have found this useful in the final game, when so many spells do the same thing, but more quickly, and against Undead as well.

===Ethereal===

A precursor to Stone Curse, this one turned living things solid. It did not work on the Undead.

===Invisibility===

From an early vision of Diablo, when stealth and tactics were part of the plan, rather than massive brute force destruction. If the icon looks familiar, it was used for the Sorceress' teleport skill in ''Diablo II''.