Showman's Resonance

Flashback {4}
{t}Sacrifice Silver Strings, Splintered Stalks and A Clockwork Heart Beckons. (All three must be untapped.)
Search your library for The Great Santini's Marionette and put it on the battlefield tapped.

If none of these can be done, {1}{t} search your library for two basic lands and put them on the battlefield tapped. Place this card in the graveyard.