Luckily black has tons of ways to turn that discard into an advantage (or at least mitigate the damage), so this card can be a fun addition to your black decks
Blizzard Brawl is an objectively better version of Prey Upon, and any deck with enough snow permanents will make it shine brightly
In fact, it's so popular that some people learn how to play the game through Commander
Because of these two cards, everyone was forced to play the same deck, driving demand for the card through the roof and spiraling prices out of control
5 Arbok And Pidgeot Darkness/Colorless Having both Pidgeot and Arbok in your deck will allow you to control the flow of battle
Once Solemn Simulacrum dies, you get to draw a card, so its always providing value no matter what it's doing