Mono Black. Needs A Sideboard

[Calebestes]

Mono Black.  Needs A Sideboard 66 cards, 0 sideboard 4 {Cavern of Souls} 18 {Swamp} 22 lands 2 {Phyrexian Obliterator} 4 {Solemn Simulacrum} 2 {Wurmcoil Engine} 2 {Massacre Wurm} 3 {Vampire Nighthawk} 1 {Griselbrand} 14 creatures 1 {Sorin Markov} 2 {Mutilate} 1 {Black Sun's Zenith} 2 {Murder} 3 {Geth's Verdict} 2 {Liliana of the Dark Realms} 2 {Dismember} 3 {Tragic Slip} 2 {Staff of Nin} 2 {Liliana of the Veil} 3 {Sign in Blood} 2 {Doom Blade} 2 {Despise} 2 {Go for the Throat} 1 {Karn Liberated} 30 other spells Sideboard

[Calebestes]

I need a sideboard.  Also I thought about putting in a gravetitan or two

[Karrthus]

First you should drop 6 cards and put it at 60 even

[Calebestes]

What 6 cards?

[An Angry Fatman]

Like {doomblade} and {go for the throat} should be sideboard cards because they specify against certain creatures. Example: destroy non-black or non-artifact creatures... If you play against a mono black deck or a artifact deck either of those cards will be rendered useless.

[Calebestes]

Should I run more murders or dismembers?