You will get four completely random WOTC Cards and one of them will be a guaranteed Holo they range from Japanese to neo destiny or base Set and yes, there is a possibility to receive a graded shadowless base set Charizard A normal holo base set Charizard among other heavy hitters

Here is what you are guaranteed of getting!

4 WOTC Pokémon cards some maybe Japanese

1 of them will be a guaranteed Holo which has the chance to be a base set Charizard or other rare holos