Hellenistic Visionary

Hellenistic Visionary can't attack or block.
{1}{u}, {t}: Create a 1/1 blue Bird Illusion creature token with flying.
{t}, sacrifice any number of illusion creatures you control: Search your library for an artifact with converted manna cost equal to the number of sacrificed creatures and put it into the battlefield tapped.
Any idea can become real if you let the dreamscape provide the raw material.