Talisman of HierarchyrampBudget$1.21A two-mana mana rock in the same colors that accelerates into white and black mana. It provides similar fixing, with the tradeoff of colorless damage instead of needing a mana to activate.
Fellwar StonerampBudget$1.91A cheap two-mana artifact that fixes mana in multicolor decks. It is often a little less deterministic than Orzhov Signet, but serves the same early ramp role.
Arcane SignetrampBudget$0.64A universal two-mana rock that reliably accelerates any multicolor deck. It is a strict upgrade in many Commander decks because it costs the same and requires no activation.
Marble DiamondrampBudget$0.37A budget two-mana artifact ramp piece that produces white mana. It is less flexible than Orzhov Signet but fills a similar early acceleration slot.
Charcoal DiamondrampBudget$0.71A budget two-mana artifact that ramps into black mana. Like Orzhov Signet, it helps smooth two-color mana, but only fixes one color.
Coldsteel HeartrampBudget$0.99A two-mana mana rock that can enter as either white or black fixing depending on choice. It is slower than Orzhov Signet but performs a similar mana-fixing role.
Talisman of ProgressrampBudget$0.39Another two-mana artifact fixer in the signet/talisman cycle that serves the same early ramp purpose. It is a similar template, though in different colors.
Talisman of DominancerampBudget$4.04A two-mana rock from the same cycle that provides fast mana fixing. It mirrors the signet's role, though in blue-black instead of white-black.