I might be able to get away with playing The Mending of Dominaria without too many creatures because I can surveil the few I have into the graveyard
This is an added benefit to already being a solid presence on the board
Youd be surprised [by] the number of things that were just a two-person idea or one-person idea that grew into something special very, very few, perhaps none, are on the level of Unknown, though. Unknown still operates outside of WOTCs usual card making process, but Verhey says the quality did vastly improve when Tabak offered his assistance, as its the editing teams job to make sure cards are as close to perfect as possible
Elesh Norn isn't often a commander, though it's more popular in the deck of 99, and it's also a popular reanimation target in other formats such as Modern and, in years past, Standard as well
This destruction clause is also a solid hedge against traditional answers to stealing creatures like Homeward Path, as returning your stolen creature or having it stolen from you by someone else doesnt exempt it from being destroyed when Merieke leaves play