Thundertrap Trainer cant find creatures, but its sweet in spellslinger decks
Development realized that both of these situations were problems, which was easily solved by moving the trigger from the end of the controller's turn to the start of the next turn
Deploy early infect/toxic creatures to chip in for that crucial first poison counter
While it is true that a few of these cards have now been Masterpieces twice (Mana Vault, Ancient Tomb, Through the Breach), we need only look as far as Mana Crypt and Sol Ring for examples of cards that have had multiple rare and shiny versions that have tended to trend upward together once the Masterpiece started to rise
All in all, only two cards were banned: Agent of Treachery and Fires of Invention were banned in Standard format and suspended in Historic format
Utopia Sprawl Utopia Sprawl is ramp and fixing, and one of the best sequences is to play Arbor Elf, then enchant a Forest with this card