Very geometric, very symmetrical
While it rarely saw tournament play, Pestilence was a casual staple in pretty much ever monoblack deck for years
With so many threatening, consistent damage sources, you can be a little more liberal with using your burn to disrupt what your opponent is doing without the fear of running out of spells to burn your opponent out with
If Zevlor had white, with the best targeted removal, in its color identity, it might be higher on my list
The downside is that while regular damage only needs to hit for 40, mill needs to hit for 99 to win the game
Kalamax will build up quickly into a game winning machine unlike many of these and get a Commander Damage kill pretty quickly unlike many of these effects