Well his bio has been translated on the fgo wiki
His blended Heroic or Divine Spirits are Gregori Rasputin, Azi Dahaka, and Bahloo
This means we FINALLY have an Australian heroic spirit!! And not just Australian but Aboriginal!!
Bahloo is from Gamilaraay folklore. Their nation spans from Singleton NSW to Nindigully QLD, making them one of the fourth largest first people's nations in Australia.
Like a lot of people I thought that Fgo first Australian servant would be Ned Kelly or another figure from our colonial days. I'm so pleased that instead they took inspiration from the rich history of Australia going back over 50,000 years and I hope soon to have a full, summonable, Aboriginal servant