Staples from these sets include Night Stretcher, the ACE SPEC cards, Latias ex, and Pikachu ex in Surging Sparks and Dragapult, Munkidori, Bloodmoon Ursaluna and Ogerpon in Twilight Masquerade
Even better if you can get some more salamanders into play, which basically means you're playing Gor Muldrak, Amphinologist
If you print a 72 DPI image on a physical card, it will look blurry, pixelated, and "cheap." To achieve the crisp, sharp text found on authentic MTG cards, you must design your file at 300 DPI (High Resolution) or higher
Double-faced cards were in the set from the beginning, as they're the most effective way of showing how heroes and villains have big story-related changes, and Sephiroth becoming the one-winged angel was necessary
In addition to that Boros is historically speaking a weak colour pair in Sealed as it lacks lategame and without clear, strong synergies to make up for the missing top-end, I would caution against going for Boros at your Pre-Release