One that could potentially cut down multiple players in a single turn if you start doubling-up on combats via Raiyuu, Storm's Edge, Combat Celebrant, and Response // Resurgence
Play with your Food In the games I got to play it in, the deck felt like it always had something to do, thanks to the card draw from Frodo and the food tokens generated by Sam
Exhaust is the exact same thing ish
The Creation of Avacyn So Atraxa, Grand Unifier
As for why Greasefang isnt popular in Standard, well, she dies to a LOT of things, and BRO Standard is filled with very easy, very cheap removal that many other formats dont often run as plentifully, but the reality is that there arent a ton of viable good Vehicles for her to reanimate
Most Utility: Thundermane Dragon The real utility here is that you dont need to reveal the top card of your library until you want to cast it