If you want to opt for a rarer mid-vintage set to open, this is probably the best option, thanks to the variety of other great hits in addition to the shiny Pokemon
Held side by side, the trio is one of the more satisfying vintage display sets you can still assemble without a treasure hunt, and it captures exactly what this expansion was trying to do, unseal Hoenns ancient giants and set them loose on the table
This majestic Mewtwo highlights the Psychic-type Pokemon, using the contrasting darker background to give Mewtwo the full spotlight
If you descended this turn, you may choose both instead
The best part about this spell is its a quick effect, which means you can use it in response to (1) your opponent targeting a Vyon, Stratos, or Faris with imperm, (2) in response to Maxx C, (3) at the end of your opponents turn, or (4) during your own battle phase to push for lethal (example being you swing in for 1000 with Shadow Mist, pop mask change, make Dark Law, Shadow mist puts Honest Neos in your hand, swing for another 2400 + 2500)