Eighteen packs, half a box, and the only reason to buy one is price. If it costs more than half what a sealed 36-pack box goes for, buy the box instead. Where half boxes make sense is on sets whose full boxes have started drifting above RRP, and Surging Sparks qualifies because the Stellar Tera Pikachu ex has kept demand up since 8 November 2024. The set is large at 191 cards in the main run and 252 in total, so eighteen packs is a sample rather than a serious attempt at it, and nobody should buy this expecting to complete anything. Check that a listing is a manufacturer-sealed half box rather than eighteen loose packs bundled together by a shop, since the two are priced very differently and only one is sealed.