Cheapest priced copy (Lorwyn Eclipsed Commander): $1.29 at Card Kingdom, near mint, their price list as of .
Massacre Girl, Known Killer 
Legendary Creature — Human Assassin · 4/4 · Mythic · Lorwyn Eclipsed Commander · #79
Menace
Creatures you control have wither. (They deal damage to creatures in the form of -1/-1 counters.)
Whenever a creature an opponent controls dies, if its toughness was less than 1, draw a card.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
7 printings · $1.29 to $15.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Lorwyn Eclipsed Commander | 79 | Mythic | $1.29 | — |
| Murders at Karlov Manor | 94 | Mythic | $1.79 | $4.49 |
| Murders at Karlov Manor | 344 | Mythic | $2.49 | $3.49 |
| Murders at Karlov Manor | 380 | Mythic | — | $9.99 |
| The List | MKM-94 | Mythic | — | — |
| Murders at Karlov Manor Promos | 94p | Mythic | $1.79 | $2.99 |
| Murders at Karlov Manor Promos | 94s | Mythic | — | $15.99 |
2 rulings from Wizards of the Coast
- 2 February 2024Use the toughness of the creature as it last existed on the battlefield to determine whether or not Massacre Girl's ability triggers.
- 2 February 2024Wither applies to any damage dealt to creatures by creatures you control. This includes combat damage as well as anything that causes creatures you control to deal noncombat damage, such as Incinerator of the Guilty's reflexive triggered ability or the effect of Hard-Hitting Question.