According to Yfull it appears as the parent branch of a Turk, 2 Balkars from Russia, a Englishman and a Scott. I would say Scythian maybe. Then again who knows. Z93 was found in a Thracian burial but I believe it was basal and not connected to modern Z93. The other day a Greek user in the R1a groups turned out to be a basal clade under M420 and negative downstream. So hes R1a1* pretty ancient. Perhaps Proto-Greek, or Persian in his case(as this is believed where M420 originated).