I collaborated on a product called Gathering: The Realms that brought more of the card game Magic: the Gathering to D&D games. The release was timed to coincide with the new set of MTG cards that brought D&D's Forgotten Realms to that game.

You can find it here.

At various points of writing, I felt frustrated, but I'm happy with the results in the end.
The product has rules for traveling between different planes of existence, options for playing characters inspired by the lore of MTG, and monsters and magic items based on old cards.

I really enjoyed working with my old editor Matt in a creative setting, along with Joe and Xhango. It was really fun bouncing ideas off each other and our artist Fil in the Discord chat, and our editor Laura did a great job.