This is my current (paper) list of affinity with jund-flavour.
I got the idea from looking at different pauper jund variants, which often play Putrid Leech. I thought "Hey, I've seen a 2/2 go to 4/4 somewhere else, it's the Carapace Forger!". So I reason that if I want to play BRG anyways, why not throw in Great Furnace, Vault of Whispers, and Tree of Tales and just use the forger? I already had a half built affinity-deck so I built it around that, but with some added quality jund-style removal, a graveyard strategy, a discard effect.
At best it should be a deck that can pump out large threats ridiculously cheap, while at the same time holding opponent back with removal and discard, occasionally restocking with card draw.
Jund style cards:
3x Grisly Salvage to find affinity creatures like Myr Enforcer to hopefully play for free, or to find one of 2x Gurmag Angler while fueling the delve cost at the same time, or to find my land-drops. Very useful here, and often keeps the tempo up!
3x Read the Bones because I just love it.
3x Blightning to shut down and burn.
4x Cast Down, premium removal fresh of the print!
Affinity/artifact package:
4x Frogmite, 4x Carapace Forger, 4x Myr Enforcer, 4x Galvanic Blast. All very standard, but I run 4x Vault Skirge as well because it can sneak in and gain so much life during a game if the opponent can't remove it. Will chump block in a pinch too!
Fixing:
4x Prophetic Prism, 1x Golgari Signet, 2x Bloodfell Caves, and 2x Jungle Hollow.
The base is 4x each of Great Furnace, Vault of Whispers, Tree of Tales, and Darksteel Citadel. The mana can be hard to assemble at times, but I think it works well enough to be playable and fun.
The new Thriving Bluff and Thriving Moor, might be good inclusions here! They're a bit hard to get on paper in my area though.