It is quite the curio, and this card being solely printed in Italian as a serialized version means it was always going to be a chase card for collectors
If they guess wrong, Gollum becomes unblockable and you draw the card
There are nineteen in total: Alolan Sandshrew Alolan Sandslash Alolan Vulpix Alolan Ninetales Shellder Cloyster Lapras Popplio Popplio Brionne Primarina Crabominable ex Wishiwashi Wishiwashi ex Dewpider Araquanid Pyukumuku Bruxish Tapu Fini These are all the Electric-type Pokmon cards in Celestial Guardians
Like Mystic Confluence, getting to trade 1-for-1 by bouncing or countering a spell then drawing a card gives control decks much-needed card advantage
So please, do read on, and collect your reward
It's combination of haste, direct damage and lifegain hate is unmatched and squarely beats lifegain and punishes blocking