Like most Magic: The Gathering cards, the value of The Darkness Crystal depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Final Fantasy)
Screenshots from FF9, for instance, look a lot less great on the card
Rook Turret Rating: 3/10 I always like the Phantom Monster creatures that we see in these sets
Build your decks and collection with the help of booster packs
Whether its a sideboarded Mirran Crusader, a pile of Lingering Souls tokens, an Etched Champion, a Young Pyromancer and company, a Nexus of the Blinkmoth or Inkmoth variety, fourteen 1/1 Goblin tokens, or simply a small pile of mana accelerants, Kozileks Return will clean them all up at instant speed, and theres no saving them with Burrenton Forge-Tender