Necromancer 2e

Hit Points
d6 - A mage should have less HP than a farmer, who has 1d8. (RAW says humans have d6 hp which is stupid. Goblins have d8-1, humans should have more hp than goblins. -Neal)

Spell System
Necromancers cast most of their spells from the of years left in their natural life (called "lifeforce" or from their health points. There is no restriction on now many casts per day otherwise. Some spells require additional reagents.

Necromancers inherently know all their abilities and have no need to memorise any of their spells in advance.