It's better to leave the necromancer as is, rather than making him a reanimator.
“Outcast” doesn't suit a mage. It's better for a warrior, a demonologist of darkness, or a chaos destroyer.
It's better to replace the "Templar" with an "Inquisitor" or a "Fanatic." Templars aren't very holy, but "darkness" and "templar" don't go together.