one piece 12 booster box S-Chinese OPC-12 [6] Leaders One Piece Japanese TCG: Legacy

Extra card draw is one of the strongest mechanics in Pokmon TCG Pocket , which is why cards like Pok Ball and Professor's Research are so good

For example, if you open a pack from Alchemy: Ixlalan and you've collected all the digital-only cards from that set, you will instead receive cards from The Lost Caverns of Ixalan

This error type does not get much more dramatic than the example pictured above, from the Italian EX Crystal Guardians set

EDIT (11-13-16): So, I seem to have forgotten some characters from the myth

Being able to create a Food token at any time makes it so that you can get them during your opponents turns, which would cause Merry, Warden of Isengard to trigger during that turn, somewhat bypassing its this ability triggers only once each turn rule