Fabricated Savior

Legendary Convoke (Only legendary creatures may be tapped for Convoke).
Search your library for a colorless card with converted mana cost X or less and cast it without paying it's mana cost. If that card was named Silex, the Hollow Dreamer, create an X/X Colorless Construct creature token.
"Arise, Silex, and dream of our salvation."
Namor - Chancellor of the Citadel