Because the two were too similar, we chose to put one in Planeshift and one in Apocalypse
That is the hallmark of a strong Modern sideboard card, one that is still plenty strong enough to wreck the primary matchup you bring it in for, yet with a secondary mode that gives it additional utility
Any combo that only needs one card and a Commander is fantastic, and being in a colour like black that doesn't normally get this sort of thing makes it even better
Jund Sacrifice may continue to drop down in overall popularity as its best matchups, such as Rakdos Demons, aren't a big part of the meta anymore
Some other notable cards include the Houndoom SIR, Duskull SIR, Dusclops SIR, and Bewear SIR
Gameplan The deck plays like how you would imagine a Death & Taxes deck does in Historic