Cheapest priced copy (Eighth Edition): $0.49 at Card Kingdom, near mint, their price list as of .
Murderous Betrayal 
Enchantment · Rare · Eighth Edition · #147
{B}{B}, Pay half your life, rounded up: Destroy target nonblack creature. It can't be regenerated.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.49 to $6.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Eighth Edition | 147 | Rare | $0.49 | — |
| Eighth Edition | 147★ | Rare | — | $1.49 |
| Nemesis | 61 | Rare | $0.49 | $6.99 |