Japanese packs generally contain three Commons, one Uncommon, and one Rare or better no Energy card and no code card
This is also true of spells like Swords to Plowshares, which can continually pick off the scariest creature-based threat on the table
That being said, endlessly tinkering with your builds is part of the fun of the game, and revisiting those old, dusty decks gives you the chance to add a few new toys
Mysterious Treasures (2007) This set builds momentum with more LV.X cards and the debut of Fossil Pokmon from Sinnoh
Drawing cards, making copies of artifacts or creatures, and clearing the board are all great options
If you copy a permanent spell cast this way (perhaps with a card like Double Major), the copy becomes a token that's a copy of the card's back face