In the average mystery box you will receive

1 booster pack

1 Psa Cgc or bags graded card graded 9 or higher

5 v,vmax, gx, or full art cards

1 coin or pin

Chases 1/3

Chases consists of a twilight masquerade etb, dark blastoise team rocket holo, charizard gx full art

If you get a chase you still receive everything else

Extra packs seeded 1/2

Good luck