Is it too late to change the effect of the tattoos? X)
Could this be a family heirloom? I didn't quite understand who, by biological roots, all these new Tezoth people are.
For what?
New people are new people. But individual offspring of the old ones can exist too. Margel, for example, still exists. If you mean the magatama, then it's possible, but being a descendant isn't a requirement, by the way.