Caged Sun - Commander 2014 - 233

Artifact

Mana Cost: {6}

As this artifact enters, choose a color.
Creatures you control of the chosen color get +1/+1.
Whenever a land's ability causes you to add one or more mana of the chosen color, add an additional one mana of that color.

Rare · Commander 2014 · #233 (C14)

Illustrated by Scott Chou