Cockatrice Cockatrice has been around for a long time and offers a lot of formats, including Commander
The app gives you access to a variety of useful capabilities such as joining local events, tracking your play, and even organizing/hosting your own events from wherever you are
Bloodghast: Sacrificing creatures for gain is one of blacks best tricks in Commander, and Bloodghast is a very strong piece of sac fodder, requiring no mana and potentially entering the battlefield multiple times per turn, thanks to Terramorphic Expanse/Evolving Wilds/Panoramas/fetches
But turning everyone elses creatures into bears is a lot more fun, and Id also argue it gives you more interesting and powerful options if you do want to fully commit to the grizzly bit and play a ton of mostly-textless 2/2 creature cards
You can absolutely still get your hands on one, but youre going to need to act fast