Obstagon = Pokemon dex #862 (regular rare Pokemon) Opendex = Pokemon you already have/registered in your Pokedex, displayed as an image with the Pokemon's details. Non-Opendex = Pokemon you don't have yet/not registered in your Pokedex, displayed as a black shadow (meaning you've seen it in raids/gyms) or just the Pokedex number. **Trade Requirements for Opendex** 1. Must have 100 Stardust 2. Must be registered in your Pokedex (Opendex) **Trade Requirements for Non-Opendex** 1. Must have 20,000 (20K) Stardust 2. Pokemon is still a shadow or not yet owned **Note:** Tip for Non-Opendex (Legendary/Shiny Pokemon) – Be willing to build friendship up to Ultra Friend to reduce Stardust cost (80,000 Stardust). If you're willing, buy the cheapest or your preferred Opendex Pokemon from Wantau Store, then message the seller to request a 30-day friendship (Ultra Friend). How to trade Opendex or Non-Opendex? Check the link below: