Cheapest priced copy (Ravnica Allegiance): $1.29 at Card Kingdom, near mint, their price list as of .
Gutterbones 
Creature — Skeleton Warrior · 2/1 · Rare · Ravnica Allegiance Promos · #76p
This creature enters tapped.
{1}{B}: Return this card from your graveyard to your hand. Activate only during your turn and only if an opponent lost life this turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $1.29 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ravnica Allegiance Promos | 76p | Rare | $1.79 | $2.99Out of stock |
| Ravnica Allegiance Promos | 76s | Rare | — | $1.49 |
| Ravnica Allegiance | 76 | Rare | $1.29 | $1.49 |
2 rulings from Wizards of the Coast
- 25 January 2019Damage dealt to a player causes that player to lose that much life.
- 25 January 2019In a multiplayer game, if an opponent loses life during your turn and then leaves the game, you can activate Gutterbones's ability.