Artifact, 6 (6)
Rare
{5}, {T}: Target player puts the top X cards of his or her library into his or her graveyard, where X is the number of cards in that player's graveyard.
As it spins, dead voices shriek in an ever-increasing cacophony, rending the mind asunder.
Illus. Jung Park

6/15/2010: The value of X is determined as the ability starts to resolve. If the targeted player has five cards in his or her graveyard at that time, for example, this ability will put five more cards into that graveyard from the top of that player's library.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Extended (Type 1.X)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern