Personally, I would be surprised if Dark Confidant were a problem in the Standard format
Unfortunately, it seems this hot streak was strictly temporary
It really needs our commander to stick or else it'll struggle hard, but between our commander's innate protection against popular targeted removal and layers of board protection you should have a good shot to stick him and then take over with a golem army
The Gitrog Monster restocks your hand, is a key component of any land-based deck including Golgari colors, and is a hefty 6/6 with deathtouch to boot
Although that certainly doesnt make things any easier
I promise you that if you are not familiar with the Rattlesnake Effect, by the time you have finished this article, you will be able to better read the game on your next Commander night, and you will have some new tricks for your next deck