Talisman of Dominanceramp$4.04Another cheap two-mana mana rock for blue-black decks, producing either color immediately with no activation cost. It fills the same early ramp role with slightly better speed and a small life-payment downside.
Arcane Signetramp$0.64A premier two-mana rock for two-color decks that taps for any color in your commander’s identity, including blue or black here. It is generally stronger than Dimir Signet because it does not require mana to activate.
Fellwar Stoneramp$1.91A flexible two-mana artifact mana source that often produces blue or black in multicolor games. It serves the same early fixing role, though its output depends on opponents’ lands.
Mind StonerampBudget$0.31A classic two-mana accelerator that helps bridge into your midgame like Dimir Signet does. It fixes less well, but the card draw mode gives it extra utility later.
Thought Vesselramp$1.92A colorless two-mana rock that supports the same curve-fixing job while also removing your maximum hand size. It is less color-fixing than Dimir Signet, but highly efficient in blue decks.
Prismatic Lensramp$0.38A two-mana artifact that can help fix colors and accelerate mana similarly to Dimir Signet. It is a bit more generic, but still fills the same budget ramp slot.
Azorius Signetramp$0.42Same signet cycle structure as Dimir Signet, but for white-blue mana instead. It is a close functional template for two-mana activated fixing rocks.
Izzet Signetramp$1.59Another signet-cycle artifact with the same two-mana, one-mana-to-filter activation pattern. It is functionally very similar, just in a different color pair.