Everyone should play with them a bit but they should be treated more like a delicacy than a staple if good games are the objective
Pernicious Deed is one of the very best mass removal cards on offer dealing with most permanent types and doing so at instant speed
Cards like Myrkul, Lord of Bones, Teysa Karlov, and The Meathook Massacre have amazing interactions with The Sibsig Ceremony
But based on what were seeing in local and online markets, the decks are being absorbed and supply will gradually lessen over time as it normally does
So, thats a bit disappointing
Creatures : Viscera Seer, Krosan Tusker, Golgari Guildmage, Charnelhoard Wurm, Deadwood Treefolk, Hissing Iguanar, Pyreheart Wolf, Falkenrath Noble, Flayer of the Hatebound, Bone Shredder, Shriekmaw, Indrik Stomphowler, Lyzolda, the Blood Witch, Savra, Queen of the Golgari, Anger, Sakura-Tribe Elder SekKuar is particularly nice with effects that sacrifice creatures, since you get the effect plus you get a bonus 3/1 creature to go along with it