There, Yorion was used as a companion in 80-card decks that took advantage of Omnath, Locus of Creation and Risen Reef
Its not only super powerful if you choose someone who is also playing Magic at the time (you get access to their cards!), but its also very funny to just randomly add a player to your game
Two of them made it into the enchanted rare camp
While Spelunking does do all those things, after playing the deck a bunch, I realized it's actually way, way better than I thought
Life total is a resource is an often used adage in Magic, and this deck pushes this to the limit as every lost point of life means you will potentially be drawing one less card with Yawgmoth
Graveyard hate is just good in modern day EDH you can never get enough of it when its incidental like this