Seething Song Market Price: $15.71 This is banned in Modern but it still sees play in Commander, to the tune of over 300,000 decks, as well as in Pauper
Wed rather Sing Friends on the Other Side draw rather than spend the Ink to play it, and Diablo Devoted Herald can Sing it
So, if the manifested card is a Cyclonic Rift, Farewell, Torment of Hailfire or anything else that might help them out of their misery, they can forget about that now
But that eBay sale, now that is harder to fathom
If you really want to build around exiling cards, Umbris, Fear Manifest can be a horror commander that plays around with Voltron themes, if only for how quickly it grows
More than once, the Arena team gave us an incentive to poke around on the game board to earn a free cosmetic