They'll contain three common cards, two uncommons, one 'wildcard' of any rarity, and a seventh card that may be "a land, a traditional foil, or a Special Guests card"
This leads to an intense rivalry and battle between the two, leading to some truly epic battles, as well as one of the most harrowing scenes in all of video games (seen below)
When you do, return target creature card from your graveyard to your hand
Generation II Card Name: Shining Celebi Card Number: 251 From: Darkness, and to Light Card Name: Shining Charizard Card Number: 006 From: Darkness, and to Light The Shining Celebi card and Shining Charizard are part of Darkness, and to Light, the fourth and final main expansion of the Neo Series in the Japanese Pokmon TCG
Finally, there is a noticeable difference between the black text on the two cards
2 Non-foil Booster Fun rare or mythic rare cards There are 33 rare (50.8%) and 7 mythic rare (5.4%) extended-art cards that can appear in these slots