MTG Combo: Dualcaster Mage + Ghostly Flicker + Mulldrifter
Generates infinite card draw. Requires 6 mana to start.
Simply cast Ghostly Flicker targeting two things. Then cast Dualcaster Mage copying the Ghostly Flicker, targeting Mulldrifter and Dualcaster Mage. The two enter the battlefield, drawing you two cards and letting you copy Ghostly Flicker again. Repeat.