Purphoros, God of the Forge My favorite aspect of Purphoros, God of the Forge is the ticking clock element it adds to the game for your opponents
Mox Opal is a clear frontrunner with Grinding Breach already in ban discussion territory
Fallen Empires gave us creatures with a shroud ability that could be activated with mana, and that was followed by Autumn Willow, a Homelands chase card (I know, that sounds funny to me too) with a static shroud ability pre-keyworded as cannot be the target of spells of effects. Magic replaced this with the slightly less stultifying hexproof, which is still just as obnoxious when youre sitting across the table from it
Al momento non sappiamo se tale collezione arriver anche nei nostri negozi GameStop, ma possiamo ipotizzare un lancio anche sul mercato italiano, come successo in precedenza con altri prodotti, per esempio la Collezione Speciale Unown-V e Lugia-V di Zenit Regale nel 2022
EDIT: A new and more likely theory has presented itself for Grey stamps in this post by @pokemonrevolution