ETCHEDCheapest priced copy (Commander 2014 Oversized): $1.29 at Card Kingdom, foil, near mint, their price list as of .
Ob Nixilis of the Black Oath 
Legendary Planeswalker — Nixilis · Rare · Commander Masters · #517
+2: Each opponent loses 1 life. You gain life equal to the life lost this way.
−2: Create a 5/5 black Demon creature token with flying. You lose 2 life.
−8: You get an emblem with "{1}{B}, Sacrifice a creature: You gain X life and draw X cards, where X is the sacrificed creature's power."
Ob Nixilis of the Black Oath can be your commander.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $1.29 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2014 | 27 | Mythic | $1.99 | — |
| Commander Masters | 176 | Rare | $1.79 | $2.49 |
| Commander Masters | 517 | Rare | — | — |
| Commander 2014 Oversized | 27 | Mythic | — | $1.29 |