Budget Alternatives to Blacker Lotus

Boommobile $0.18 2RR · Vehicle When this Vehicle enters, add four mana of any one color. Khalni Gem $0.30 4 · Artifact When this artifact enters, return two lands you control to their owner's hand. Empowered Autogenerator $0.32 4 · Artifact This artifact enters tapped. Coveted Jewel $0.36 6 · Artifact When this artifact enters, draw three cards. Pyramid of the Pantheon $0.37 1 · Artifact {2}, {T}: Add one mana of any color. Glittering Stockpile $0.37 2R · Treasure {T}: Add {R}. Metamorphosis $0.39 G · Sorcery As an additional cost to cast this spell, sacrifice a creature. Lotus Blossom $0.40 2 · Artifact At the beginning of your upkeep, you may put a petal counter on this artifact. Implements of Sacrifice $0.50 2 · Artifact {1}, {T}, Sacrifice this artifact: Add two mana of any one color. Mirrored Lotus $1.76 Artifact Reflect {0}