Q. Can I use Rare Candy to evolve from Helix Fossil to one of the Kabutops from older expansions that evolve from Mysterious Fossil? A. Since Kabutops can evolve from Kabuto of any expansion, you may use Rare Candy to evolve either Helix Fossil or Mysterious Fossil into any Kabutops, regardless of expansion. (May 22, 2008 PUI Rules Team) Am I right that the compendium means Dome Fossil or Misterious Fossil? Or is there something i don´t understand?