2019 Valentine's Packs can be found in boxes of WXEX-1 Unlimited Selector. They coincide with the SPK-13 Variable LRIG Pack, which was also released with Unlimited Selector. As the 2019 Valentine's Pack is not a K-numbered pack, its cards will not be automatically marked with the symbol; however, level 0 LRIGs that already have a level 0 key symbol printing will have the key symbol, and all level 0 LRIGs are legal in Key Selection regardless.