The centerpiece emblem is always engraved in a mirror-finish silver
Check out a few but prioritize actually fun things on your trip instead of just making it irl mercari
The most rare, and most valuable one is the three-color Neon Ink variant, which has a less than 1% chance of opening a Special Guest card at all, and an even smaller chance of opening this three-colored iteration.
Aside from there being some solid options for Bird cards in Bant, like Derevi, Empyrial Tactician, there are also cards like Murmuring Mystic and Flurry of Wings that can create Bird tokens for you
With that in mind, ensure you sequence your cards correctly, lining up the big spell you really want to copy the turn after dropping this
Nowadays, cards have so much baked-in inevitability that it's hard for Control decks to catch up