‘Lost Thunder’ Build & Battle Box, ETB Contents By: Water Pokémon Master Posted 12 months ago to TCG 14 comments We now have (small) images of the Lost Thunder Build & Battle Box and Elite Trainer Box contents! Here are Lost Thunder images we posted previously: We are currently missing images of the other one-pack and three-pack blisters. We still don’t know what promos they will contain. Lost Thunder prereleases will take place from October 20th to October 28th. The set will then hit store shelves on November 2nd. It will be the largest set in the TCG’s history, with over 210 cards.