If you're struggling to sell anything, then maybe it would be good idea to lower your prices.
i had no issue selling any itemonly ppl i see struggling are those asking for 70-80k for 2atk/def and statalso id stones dont sell coz ppl dont change name everyday js
there arent ppl around anymore selling with those prices unless they make price too high for specific person just not to sell to him/her.
go game now check Spectre.