For collectors, it truly adds value
Tovolar is currently worth $10.46
Since your goal with Sephiroth is to flip him as soon as possible, and you need four death triggers in a turn to make that happen, Nether Traitor can help you achieve that with three creatures rather than four
Retail Packaging Manufacturers design packaging, storage cases, and shipping materials around the standard card size to reduce wasted space and improve protection during transport
Like most Magic: The Gathering cards, the value of Disenchant 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 (Arena League 1996)
Its expensive as a 3-mana do-nothing aura, but later in the game, getting one (or more) Tarmogoyf tokens every turn pays off