Like most Pokmon cards, the value of Onix 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 (Plasma Freeze)
Where to Play Magic: The GatheringFINAL FANTASY #mtg Prerelease June 6-12 - 6 packs, plus a stamped promo
Legolas gets a +1/+1 counter every time the player targets it with any spell, which encourages the use of cheap instants and sorceries, and perhaps a few cheap Auras as well
Only one complete set of all 10 Snap promos is believed to exist globally, and it was displayed as a museum-style exhibit at the Le Gala TCG event in Paris
Mewtwo V (Alternate Art) This is the crown of the set and has been since day one
Decks With This Card Recent public and tournament decks using Red-Eyes Darkness Dragon