I wish I would have considered this card years ago for Pitch Long, Grim Long, and TPS brews. In the modern Vintage metagame, I would have to consider it for DPS and possibly Doomsday. (Dark Ritual decks)
Most of the time this card isn’t going to win on the spot. But what I like about it is that it’s a permanent-based draw engine. It should be countered by the opponent if they have a counter. So it would be in the “bomb” or “threat” territory. Ritual decks would be the natural homes since Dark and Cabal Rituals can mitigate the initial mana cost. Given a turn 1 Duress, this should reliably land on turn 2 and provide a path to victory by drawing a ton of cards. Similar to Necropotence. Not as good, but it seems good enough as a 1-of. It won’t eat a Red Blast or a Flusterstorm. Just an alternative engine for getting ahead. I’ve never considered trying it until now.