Cheapest priced copy (Fifth Dawn): $0.35 at Card Kingdom, near mint, their price list as of .
Dawn's Reflection 
Enchantment — Aura · Common · The List · #C18-139
Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional two mana in any combination of colors.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
3 printings · $0.35 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Fifth Dawn | 85 | Common | $0.35 | $1.99 |
| Commander 2018 | 139 | Common | $0.35 | — |
| The List | C18-139 | Common | $0.35 | — |
2 rulings from Wizards of the Coast
- 1 December 2004The controller of the land gets the additional mana, not the controller of the enchantment.
- 1 December 2004The two mana can be of two different colors. The controller of the land chooses the colors.