Magic: The Gathering - 10 Most Powerful Mono-White Cards In 2020 Standard
10. Hushbringer
A popular sideboard card, and even a mainboard include in life gain decks, Hushbringer can shut down popular sacrifice combos and other enter the battlefield or dying triggers. The downside to shutting down etb (enter the battlefield) combos is that popular escape cards Kroxa and Uro don't need to be sacrificed when they are first cast meaning those 6 power creatures stick around on turn two.
A 1/2 flyer for 2 mana normally isn't worth a second look. Lifelink can make it semi-relevant to life gain strategies as a 2 drop flyer can get in for some damage in the early game. The main reason Hushbringer sees any kind of play is its static ability of shutting off enter the battlefield and dying triggers. It largely sees sideboard play because it doesn't fit the specific strategies of most decks plus the previously mentioned Kroxa and Uro unintended consequences.
Hushbringer can be a wooden stake to the vampiric heart of popular cat combo and other sacrifice strategies. As long as you can protect it from all of the removal those decks can pack Hushbringer is easily worth its sideboard slots and earns its place here by being able to shut down one of the most popular current standard strategies.