Cheapest priced copy (Betrayers of Kamigawa): $0.39 at Card Kingdom, near mint, their price list as of .
Mark of the Oni 
Enchantment — Aura · Uncommon · Betrayers of Kamigawa · #73
Enchant creature
You control enchanted creature.
At the beginning of the end step, if you control no Demons, sacrifice this Aura.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.39 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Betrayers of Kamigawa | 73 | Uncommon | $0.39 | $1.49 |