In Fallen Empires, a cycle of artifacts was printed: Balm of Restoration, Conch Horn, Implements of Sacrifice, Aeolipile, and Elven Lyre. Most people never even noticed that these were a cycle. Can you see what their relationships are to one another?
They each sacrifice to emulate two-thirds of the effect of one of the original Alpha "boons". Some were slightly adjusted -- Conch Horn was weakened to be more like Brainstorm than Ancestral Recall, and Implements of Sacrifice provided any color of mana, but the general idea is still there.