You went first and you did have a Basic Pokmon card in your starting hand, so you lay down your prizes
About 85% of those packs will have these as the final three cards: nonfoil rare EA, nonfoil rare showcase/borderless, foil EA/showcase/borderless rare
Chronomaly Artifact was a deck that seiged the OCG meta for quite some time, and by all means, you can bring back a little bit of that with a splash of Chronomaly in your pure-Artifacts
Sleeves Polypropylene Photo 4x5" Clear, Fold Locking Style, pack of 10 - Best for Fragile Photos and Cards These Polypropylene Photo Sleeves are sealed on 2 parallel (longer) sides and open on 2 (shorter) sides
This was great if you knew what the top card of your library was, via a Sylvan Library for example, but depending on what your ante card was, it didnt matter