It takes some finagling, but this could help you keep cards that are meant to only last a single turn on the battlefield for an indefinite period, and if you double up on Warp effects with someone like Tannuk, you can get stuff like the previously mentioned Blightsteel Colossus on the field permanently that much faster
Honorable Mention Poison Dart Frog I had to find a place for the frog
Tim Jacobuss Damn is definitely horrible, as the smiling face disintegrates
According to Wikipedia there werent too many of those
A monolithic Golisopod dominates the card, and towers over anything else in the room - appearing to have smashed through the ceiling, this Hard Scale Pokmon is intricately designed and appears in such a way as to exemplify the threat that it could pose
Finally, if you dont care much about turning a profit through buying packs, the cheapest way to get the cards you want from a current set is to buy them directly from other collectors after a few months