If your Buzzwole is on cooldown, simply retreat it either normally or with a Celesteelas ability then use Celesteela to place it back in and you can use Big Buzz again
@pokemonrevolution recently presented a new and likely theory for these Grey Thick stamps, which I will quote here: Grey Stamp Theory Grey stamped 1st Edition Base set cards for the most part have commonly been considered to exist because of either A) The ink was low when they were stamped B) The stamp was not pressed down with enough force to create a nice dark color
While theyre all eternal-legal, the set as a whole is clearly aimed at multiplayer Magic
At first, I assumed it would be a reprint of the original Base, Jungle, and Fossil sets, with a few extras thrown in
to be used by Monty Python fans in their competitive decks in whatever format they play
in these regions, distributors of the game run tournaments