Cheapest priced copy (Betrayers of Kamigawa): $4.49 at Card Kingdom, near mint, their price list as of .
Mark of Sakiko 
Enchantment — Aura · Uncommon · Betrayers of Kamigawa · #135
Enchant creature
Enchanted creature has "Whenever this creature deals combat damage to a player, add that much {G}. Until end of turn, you don't lose this mana as steps and phases end."
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $4.49 to $27.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Betrayers of Kamigawa | 135 | Uncommon | $4.49 | $27.99 |