Cheapest priced copy (Final Fantasy Commander): $0.79 at Card Kingdom, near mint, their price list as of .
Shadow, Mysterious Assassin 
Legendary Creature — Human Assassin · 3/3 · Rare · Final Fantasy Commander · #50
Deathtouch
Throw — Whenever Shadow deals combat damage to a player, you may sacrifice another nonland permanent. If you do, draw two cards and each opponent loses life equal to the mana value of the sacrificed permanent.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.79 to $6.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Final Fantasy Commander | 50 | Rare | $0.79 | $0.79 |
| Final Fantasy Commander | 148 | Rare | $0.99 | $6.99 |
2 rulings from Wizards of the Coast
- 6 June 2025If a permanent has {X} in its mana cost, X is 0 for the purpose of determining its mana value.
- 6 June 2025Use the mana value of the sacrificed permanent as it last existed on the battlefield to determine how much life each opponent loses.