I would assume he was simply asleep, but the flavor text says, "Dying in your sleep is never peaceful when Ashiok is involved." So, I take that to mean he's "bought the farm" in what would usually be a peaceful fashion in this dim-lit, whimsical forest
She has a Mardi Gras mask, and confetti falls across a lovely night sky, speaking to her New Orleans traditions
I should know, as I have abused it myself to massive wins all up and down the years in countless formats
But don't overlook the waifu tax: the fact that Rev is a cute anime girl is almost certainly driving sales here, just like it is for some of the other top cards from the set, Evereth and Aphelia ($30 and $55 respectively)
Considering this, Gogos low play rate in the Command Zone is quite shocking, with only 2593 decks built around him according to EDHREC
Yawgmoth is the glue that holds this deck together and singlehandedly makes it playable