Secret Santa
This format involved each participant creating a short list of Phoenixborn and cards or dice they wanted to use. The organizer would then randomly give those lists to a different participant, and the receiving participant would construct a deck based on those lists. Lastly, the organizer would return a finalized decklist to the original player for their use in the event.
The remainder of the event would proceed as any other event; through swiss, top cut, or however else the brackets had been set up.