Ancient tombs and hoards across the Eurasian steppe call for a thorough revision of art-historical categories associated with pastoral societies from Mongolia to Crimea. This study focuses on one such category. “Animal style” is an umbrella term traditionally used to categorise portable precious metalwork ornamented with dynamic scenes of vigorous animal fights and entwined zoomorphic designs. With its emphasis on irregular animal anatomies and deeply rooted in a “pars-pro-toto” mode of expression, steppe imagery of fantastic fauna presents a useful case study in broader investigations of composites in the ancient world and their diffusion across cultural spheres. This study views beasts through a binary lens, the structured monsters of Greco-Roman thinkers and the organic composites of nomadic steppe artisans. In the Western canon, “composites” existed within a politically-manufactured framework of governable “otherness”, in which fantastic fauna conveys a certain tension with the exotic, unknown and uncontrollable East. Meanwhile, in the visual rhetoric of steppe artisans, monsters represented a tension with the (cyclical) shifts occurring in one's biota rather than the tumultuous events in one's constructed environment. This paper explores how the contrasting steppe pastoralist and sedentary imperial world-views came to define the various functions and meanings of “composites” in Eurasian Antiquity.