>>38301024of the brand-new pokemon introduced in gen 7 none of them evolve through trading, though I agree it was a missed opportunity to change it with alolan graveler since alolan sandslash evolves in a new way too. While it would make sense to introduce new ways of evolving previously trade-evolvable pokemon for future games, there's no way gamefreak's autism would let them change such a long-standing "feature".
