Sworn To Darkness

Sworn To Darkness is a 100-card Commander precon from Commander 2014, released November 7, 2014. It is led by Ob Nixilis of the Black Oath, a mono-black commander.

Ob Nixilis of the Black Oath

[+2]: Each opponent loses 1 life. You gain life equal to the life lost this way.
[−2]: Create a 5/5 black Demon creature token with flying. You lose 2 life.
[−8]: You get an emblem with ", Sacrifice a creature: You gain X life and draw X cards, where X is the sacrificed creature's power."
Ob Nixilis of the Black Oath can be your commander.

The list runs 40 lands and 28 creatures, and its nonland cards average 3.87 mana. At today's TCGplayer prices the whole deck's cards come to about $101.95, and the most valuable is Jet Medallion at $12.61.