The best representatives of the Royal Scythian element, the 'true Scythans', were those who poured into Europe in earnest between 500 B.C. and just after the birth of Christ (but had been trickling long before), taking advantage of the same wagon-baded mobility and pioneering instincts, using the same horse breeds and similar weaponry and leaving similar burial mounds and artistic remnants in their wake, with similar clothes and armour and customs and traditions and worldview.
It's stated by several historians that the further outward the Scythian tribes were from the central/Royal element, the more wild and 'rough' they tended to be. These outer tribes seemed to be less strict with regards to caste structure and intermixture with peoples they conquered, which gave rise to the Huns and Mongols, among so many others.
https://youtu.be/_1OVwuCdkK4
It's stated by several historians that the further outward the Scythian tribes were from the central/Royal element, the more wild and 'rough' they tended to be. These outer tribes seemed to be less strict with regards to caste structure and intermixture with peoples they conquered, which gave rise to the Huns and Mongols, among so many others.
https://youtu.be/_1OVwuCdkK4