Cheapest priced copy (Planar Chaos): $0.35 at Card Kingdom, near mint, their price list as of .
Utopia Vow 
Enchantment — Aura · Common · Planar Chaos · #142
Enchant creature
Enchanted creature can't attack or block.
Enchanted creature has "{T}: Add one mana of any color."
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Planar Chaos | 142 | Common | $0.35 | $0.49 |
| The List | PLC-142 | Common | $0.35 | — |
| Time Spiral Remastered | 245 | Common | $0.35 | $0.49 |