Nigon is the second underground race.

if we can xD power plus knowledge isn't Necromancer, I agree. It's Warlock. -.- darkness doesn't need power. It's not acquired for the sake of unholy words or plague, just as light isn't. think for yourselves)

Added after 1 minute
add a fifth characteristic) something like "magicality" -.- like, if you're a true mage, all spells are available to you xD