Dark Confidant (also affectionally known as "Bob"), released in Ravnica: City of Guilds, is a rare, black creature that allows its controller, at the beginning of his or her upkeep, to effectively draw an additional card at the cost of paying life equal to the card's converted mana cost.
"Bob"
Dark Confidant is so nicknamed after Bob Maher, its creator. Maher won the right to design and be immortalized in his 2004 Magic Invitational submission. The card's flavor text alludes to the fact that Maher's epithet "the Great One".[1][2]