Dahlia is a calm, collected, and amazing warrior. Her motto is "Keep quite and keep sharp", to which she almost always sticks to. Dahlia never backs down from a fight, even though sometimes it is against her better judgement. She also has a thing for spending time alone, usually to hone her own skills, just in case something were to happen to Jasper in the middle of a battle that would render him useless.
Dahlia, in contrast to her sister, is very much like her father. Both are very calm, have a dark side, and are also very powerful in battle, even on their own. The only major difference between mother and father is that Dahlia prefers to keep to herself while Tenscythe likes to be around at least family.
Lily and Dahlia are constantly in competition for being Jasper's favorite weapon, and have even been fighting since they were in the womb. Despite this, they care about each other very much, and can actually telepathically communicate with each other on a level that almost nobody can intercept.