Jayemdae Tomecard_drawBudget$0.07Classic colorless repeatable card-draw artifact with a very similar activation pattern and pacing.
Loreseeker's Stonecard_drawBudget$0.09Also turns mana into repeated card draw from an artifact, but can draw multiple cards once you have enough mana.
Mind's Eyecard_draw$4.63A colorless artifact that provides ongoing card advantage through activated draw, though it triggers off opponents drawing instead of a fixed tap cost.
Staff of Nincard_draw$0.82Similar in being a six-mana colorless artifact that gives repeatable card advantage, though it draws automatically each upkeep.
Tower of Fortunescard_draw$0.28Another high-cost artifact that converts mana into card draw with a tap activation, serving the same long-game role.
Hedron Archiveutility$0.25Not repeatable draw, but a comparable colorless artifact that can be sacrificed for card advantage while also ramping.
Endless Atlascard_draw$2.21A cheaper colorless draw engine for decks with repeated same-name lands, filling the same artifact card-advantage slot.
Mazemind Tomecard_draw$0.26A versatile colorless artifact that repeatedly generates card selection and eventual card draw, offering similar incremental value.