Why the Brock’s Vulpix W Stamp is rare
The Dark Arbok W Stamp promo (the W stands for Wizards of the Coast) is considered one of the rarer Wizards-era promotional Pokémon cards. Distributed during early Pokémon league events in limited quantities, this promo card became highly sought after among collectors due to its unique stamp and limited print circulation.
Collector interest
Unlike regular holo cards, the W Stamp variant appeals specifically to Wizards of the Coast era collectors.