Moonbeams' Haunter

Flying
Whenever this creature deals combat damage to a player, look at the top card of that player's library.
—
The Genie that haunts the moonbeams spake to the
Daemon of the Valley, saying, "I am old, and forget
much. Tell me the deeds and aspect and name of
them who built these things of stone."
Memory—H.P.Lovecraft