MAGIC: THE GATHERING
|Search your library for a card, then shuffle your library and put that card on top of it. You lose 2 life.|
This potent instant is a mainstay of many vintage archetypes. The card disadvantage of spending a card to put one on top of you library is often outweighed by finding Ancestral Recall or a combo piece like Yawgmoth's Will. Yawgmoth's Will is currently banned in Legacy and restricted in Vintage.