[1.2.314] Battlemage Job

In both of those cases aren't the mobs dark element mobs that would naturally resist dark genesis because they're subject to heal damage?

Those look like Blue Kents in the SS though. Besides, Dark Genesis has 770 base damage at level 1 so it's doing as much damage as one would expect. Cyclone should only have 440 base damage at level 1 yet it's notably stronger.