Dark energy

Lately, I've enjoyed raising only level 1-4 creatures using necromancy. IMHO, ghosts and vamps are more useful than high-level own large creatures. It feels like the Dark Magic is being spent in the right direction. Zombies and skeletons are good as meat during difficult battles where heavy losses are inevitable (for example, taking the Dragon Utopia).

P.S. I don't know if anyone has noticed yet, but instead of one bone dragon, for the same amount of energy, you can raise 58 unupgraded skeletons (which is almost 3 basic weekly growths).