Wow, thank you so much for all the great responses. These are great suggestions all.
Yeah, I've played through a few campaigns with portals opening, and really it does have to come down to some form of breach or summoning ritual in order to get those threats to the Natural World (at least initially) to hook the PCs.
I fully realize the rules are merely guides and I can make whatever happen that I want, but I look at those devils in the monster manuals et al, and it just looks difficult for them to be walking around in public, insidiously manipulating people. 4e seems to put a lot of emphasis on devils as soldiers instead of corruptors, but it does have a few that look like they could work. For instance it seems less easy to bring a Barbed Devil to the natural world than a succubus. MM2 has this Misfortune Devil and The Plane Above has this new devil that can enter a creature (great suggestions on Possession too btw) and control them to seek out people who have escaped hell.
I do like the idea of this breach taking place (either a ritual or portal) and the devils holing up in the underdark or something like that, so they are not indeed out and about on the surface, but building a small army while sending out spies to infiltrate the civilized folk.
Anyway, thanks again for the swift and creative responses!
Yeah, I've played through a few campaigns with portals opening, and really it does have to come down to some form of breach or summoning ritual in order to get those threats to the Natural World (at least initially) to hook the PCs.
I fully realize the rules are merely guides and I can make whatever happen that I want, but I look at those devils in the monster manuals et al, and it just looks difficult for them to be walking around in public, insidiously manipulating people. 4e seems to put a lot of emphasis on devils as soldiers instead of corruptors, but it does have a few that look like they could work. For instance it seems less easy to bring a Barbed Devil to the natural world than a succubus. MM2 has this Misfortune Devil and The Plane Above has this new devil that can enter a creature (great suggestions on Possession too btw) and control them to seek out people who have escaped hell.
I do like the idea of this breach taking place (either a ritual or portal) and the devils holing up in the underdark or something like that, so they are not indeed out and about on the surface, but building a small army while sending out spies to infiltrate the civilized folk.
Anyway, thanks again for the swift and creative responses!