I'm already trying to find the Chaos Warp in my LGS, it's one of the big priorities ;) Shriekmaw or Nekrataal have the advantage of targeting, when compared with Fleshbag Marauder + Merciless Executioner , I can't really get rid of something like a Blightsteel Colossus (not that I find myself on the wrongside of one of those often, but there are other annoying targets that I just need to get rid of sometimes) for instance
Plus it gives us a timing restriction with the sentence: Activate only as sorcery. What Things Count as Activated Abilities
[59] Forced to stay away from the turbulent data in the outskirts of the Restricted Area, The Shepherd chased them into the central shafts, ordering them to surrender or Duel, and Playmaker accepted his challenge
Check out this Game Knights video where Muldrotha cleans house in the Brawl format
Her off-class access to Seeker and Mystic makes her a versatile support investigator, on top of being able to take any card that heals horror, giving her a surprisingly varied deckbuilding option of cards among all classes