Mark Rosewater has announced that the correct/erratad version only gains the power bonus from opposing Blood tokens until end of turn. You can get your hands on both of these cards when Innistrad: Crimson Vow and the accompanying Crimson Vow Commander decks go on sale on November 19th
That stopped being a thing pretty quickly as dorks first phased out for super powerful spells, then slowly phased back in, first with lots of utility and EtB effects and more recently with massive amouts of stats, keywords, activated, triggered and static abilities too
Such "prison decks" lost some degree of potency when the rules for Artifacts were changed (under the old rules, an Artifact's effect was "turned off" when it was tapped, meaning Winter Orb only affected the owner when they wanted it to), and largely disappeared with the advent of fast combo decks that won long before the board could be locked down, being replaced by much quicker "control" decks
Atsushi Nagashima, Game Director of the Pokmon Trading Card Game at Creatures, talked to IGN over email about how the card came to be
Shadowless cards are much scarcer than Unlimited but more common than 1st Edition
This special print only has an Italian print
