I spent most of today making a tutorial. There are a lot of little things to explain, like clicking to attack vs hold & release to charge an attack, raising dead, dying to pick up mana, ect. It starts with words on the ground telling you to move, and words to the right that you can't see until after you've moved. I try to follow that pattern of making you do a thing before giving you the next piece of info, and teach players that getting killed can be a good thing before giving them any threats.
I also added blessed versions of enemies, that can damage you while in spirit mode. Here's the game so far with no sound!
http://differentname.net/necromancer/NecromancerGame.exe
Tomorrow I can only work a few hours, so my main priority has to be sound. I also need a title. Beyond that, maybe I'll make a couple more skeleton types, that you get from raising different enemies. I thought about having some tougher skeletons from tougher enemies, because it sucks when you kill some paladins and only get a few wimpy skeletons out of it. Also, it was the first thing TheChubu and Alpha_ProgDes suggested when trying the demo, so I should probably get to that if I have the time. I also have ideas for a boss that kind of mirrors your own character, but I probably don't have time for it.