­Death's Duet, Morbid Plunder, Urborg Uprising...does green really have to pay through the nose for that?

Good points, I was tired when I costed this originally, but I think I'm going to move this to 3G and returning Instants and sorceries to fit the theme. Green has a history of returning any card from your yard to hand, so the clause is very reasonable when considered in the context of the world.

Instants and sorceries? That'll raise some eyebrows. It's generally blue and red that get to play in this space. I mean, it's not like a given set can't change that; my set Sienira's Facets had black as the major sorcery colour and the minor instant colour (over red and after blue, respectively). But I acknowledged that was somewhat unusual.

Yep, but I'm hoping to raise eyebrows. I think if a set doesn't push what Magic currently means at least a little, then they're really just setting themselves up for a boring game which recycles the same things ad naseaum. The flavor justification for this is that green is the major color of the hermits who have been excommunicated from society for practicing magic. That combined with green's history of returning any card from the yard and I think this is okay. Only thing I'm worried about is costing. I could see this being either too strong as printed or not strong enough. May change to be an instant for more cooperation between players.