When I bought it the seller also stated it was a test print, but unfortunately he barely had any information Here are some relevant parts of the PMs he send me at the time: The cards came from a trusted ex WOTC source who has provided me with many different legitimate rarities from magic and Pokemon
This white enchantment (which can be seen in the gallery above) continues a recent initiative WOTC has been very open about, attempting to provide better card draw and mana ramp options to white a color that has traditionally struggled with both of those things in the Commander format
The ability to tap and reflip any coin flip works well with a ton of chaotic coin flipping cards, from Bottle of Suleiman to Goblin Assassin
The regular treatment of each card are also in the set as well as the other six Travelers that we have yet to see
You've weighed a bunch of decisions and made the correct ones (hopefully!)
Gandalf the White, for example, is designed to mainly care about legends, but he can also break the famous artifact Isochron Scepter, as noted in this Reddit thread where users recognized the potential that Gandalf's ability adds to the Isochron Scepter
