Pure-Blood: a being who is born with pure magic genes.
Half-blood: a being who is born to parents of different races or species, resulting in a mixed heritage.
Norm-blood: a being who is born to norm parents.
Semi-blood: This blood type is very rare, in which a being is born into half-blood genes that may have skipped a couple generations due to a half-blood marrying a norm. The difference with this type of blood from norm-blood status is that it's highly likely the child may never get their powers or for example, giant genes, at all at birth. The chances are 3%, even for descendants as well, whom may never get them whatsoever, depending on how strong the genes are, which might take years or centuries to happen. For education, they may go to a norm school, but if powers happen to show up, there are classes located in the academy specifically made for this blood type, called "halfling studies."
For further explanation, since the child is a mix of half-blood and norm born, if they were to marry a norm and have a child, the norm blood genes are 90% or higher than the half-blood genes, because the genes doubled. I hope that makes sense, haha😂