Board Thread:General Discussion/@comment-35236548-20180418013054/@comment-35315474-20180419023715

There are some collections that give out Diagrams as rewards. Search the collections for "Diagram" to find them. I find many things are available in collections when I search for their name. Just be sure to use their exact name and not their plural, such as Diagram not Diagrams.

You can use the search box in the collections section to find rewards, items, or collections by name.