Wizard Professor: In our wizarding system, the bloodline path is an obsolete one. Impure bloodlines have limited potential. Even a pure bloodline, capable of fully absorbing the power of its source, is inherently singular, limited by its origin and vulnerable to exploitation. Even if you replace that source, the same applies; otherwise, those bloodline origins wouldn't have become extinct. For example, a dragon wizard would be further suppressed and harmed by dragon-slaying spells. And what about hybrid bloodlines? While they may overcome the weaknesses of a bloodline, they are prone to bloodline diseases. Even with a bloodline pedigree chart, it's difficult to determine whether a hybrid bloodline inherits advantages or disadvantages. Therefore...