Artifact — Equipment, 1 (1)
Uncommon
Equipped creature gets +1/+0 for each of its colors.
Equip {1}
Those without a guild signet often display a different form of protection.
Illus. Jung Park

10/1/2012: Civic Saber’s bonus can range from +0/+0 (for a colorless creature) to +5/+0 (for a creature that’s all five colors).
10/1/2012: If the equipped creature becomes a different number of colors, the bonus will change accordingly.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Extended (Type 1.X)
Legal in Standard (Type 2)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern