Talisman of Unityramp$0.86Provides two-color fixing in green-white decks and accelerates you from two to four mana, much like Selesnya Signet. It is often easier to use immediately because it taps for colored mana without needing additional mana first.
Talisman of Progressramp$0.39A near-functional signet-style mana rock in two colors, with the same fast early-game acceleration pattern. It is a strict color-pair variant for decks that can use white and blue instead of green and white.
Golgari Signetramp$0.50Same signet cycle effect: converts one mana into two-color fixing and develops mana efficiently. It serves the same role as a two-mana ramp/fixing artifact in multicolor decks.
Azorius Signetramp$0.42Another two-mana mana rock with the same activation pattern and fixing role. It fills the same slot in decks wanting cheap artifact acceleration and color smoothing.
Arcane Signetramp$0.64One of the best universal two-mana mana rocks for multicolor decks, fixing any color in your commander identity. It is more flexible than Selesnya Signet while serving the same ramp role.
Fellwar Stoneramp$1.91Cheap two-mana artifact ramp that often fixes for the colors you need in multiplayer formats. It overlaps strongly with signets as early-game acceleration and color fixing.
Simic Signetramp$0.21Same card family and same mana-rock function, just for a different color pair. It is a close analog for decks that value efficient two-mana fixing artifacts.
Gruul Signetramp$0.45Efficient two-mana fixing artifact with the same activation style as Selesnya Signet. It plays the same role of turning generic mana into colored acceleration.