10Dark Armed Dragon - $91
Proving that you don't need the Metalmorph Card to be pretty metal in this game, Dark Armed Dragon seems to come straight from the cover of a hard rock album to destroy all of your puny monsters. Only summonable if there are three Dark Type Monsters in the player's graveyard,
it quickly makes mincemeat of the opponent's side of the field by destroying any card on the field if the player banishes any Dark Monster from their graveyard.
While the fact that it is a pretty good card isn't enough to justify the price on just any old version of the card, the one found in the Turbo Packs only available at official tournaments certainly does. Currently going for about 91 dollars online.