01 Printing 1
Nonfoil
Nonfoil
Reported prices
Source Scryfall Market guide Provider market guide mapped to Near Mint
US$5.15
Observed
Open source record 
As this artifact enters, choose a color. Creatures of the chosen color get +1/+1. Whenever a basic land is tapped for mana of the chosen color, its controller adds an additional one mana of that color.
Exact printings