In terms of Magic sets as a whole, we often talk about a critical mass of powerful cards that have not been reprinted
Its an artifact, so it can assist in providing more mana from Inspiring Statuary, as well as producing Thopters with Sai

Here's a full list of every card required for the 'Pulsing Aura Museum 1' Secret Mission: Treecko #156 (Full Art / One Gold Star) Grovyle #157 (Full Art / One Gold Star) Shroomish #158 (Full Art / One Gold Star) Budew #159 (Full Art / One Gold Star) Flapple #160 (Full Art / One Gold Star) Tepig #161 (Full Art / One Gold Star) Quagsire #162 (Full Art / One Gold Star) Zekrom #163 (Full Art / One Gold Star) Morpeko #164 (Full Art / One Gold Star) Meowstic #165 (Full Art / One Gold Star) Oricorio #166 (Full Art / One Gold Star) Brambleghast #167 (Full Art / One Gold Star) Bonsly #168 (Full Art / One Gold Star) Riolu #169 (Full Art / One Gold Star) Meloetta #170 (Full Art / One Gold Star) Carkol #171 (Full Art / One Gold Star) Kubfu #172 (Full Art / One Gold Star) Seviper #173 (Full Art / One Gold Star) Zorua #174 (Full Art / One Gold Star) Malamar #175 (Full Art / One Gold Star) Bisharp #176 (Full Art / One Gold Star) Meltan #177 (Full Art / One Gold Star) Castform #178 (Full Art / One Gold Star) Cinccino #179 (Full Art / One Gold Star) Rewards: 36 Wonder Hourglasses, 12 Pack Hourglasses and 10 Shop Tickets

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If you've got cards from your Foundations Play Boosters or the Starter Collection, why not bring a personal touch to these decks
There are a lot of accessories that they sell as well, from Playmats to Sleeves, so it's always worth checking in and seeing if you can pick up some Japan limited items