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
But what that means in practice may surprise you: its not all about taking extra turns yourself, its about denying your opponent a turn
OP-16 Sengoku Deck Guide OP-16 Ace Deck Guide: Whitebeard Pirates Burn Build: OP-16 Ace deck guide covers the Red leader's fast burn strategy, Whitebeard
The effect is quite interesting, where Infernal Denizen takes control of an enemy minion, but you need to sacrifice two swamps each turn
Sicarian Infiltrator is a fantastic surprise blocker that can refill the hand, and Vanguard Suppressor seeks to keep the cards coming
I think the behavior, as it has been presented, sucks