An NFT game like Axie Infinity requires players to own or access three Pokémon-like creatures called Axies, each a unique NFT that can be battled, traded, and bred.
each a unique NFT that can be battled, traded, and bred = each being a unique NFT that can be battled, traded, and bred 这是独立主格结构省略了现在分词being,而不是名词短语。独立主格结构作状语,对Axies作补充说明。