I am currently loving two very different games: Fortnite and Pokemon TCG
On your end step you can create a copy of a token you control, if that token is a Squirrel, you make two of that token instead
Alternate 4th edition is found exclusively in starter decks, which can be identified by the "Made in the U.S by the United States Playing Card Company" marked on the side of the boxes, or the ISBN numbers 1-880992-26-4 or 1-880992-25-6 on the back
Note that at time of writing there are listings of Onslaught Biorhythm for under $30, so it may correct down before stabilizing
However, it seems that adults are buying them up before anyone else can get to them
The world of collectible card games (CCGs) is vast and varied, but few capture the imagination quite like the One Piece TCG