I think I am going to go x3 pain, x1 bounce, then in support run 5 colorless cycling lands, x2
radiant fountain, x1 quicksand, x1
barbarian ring, and x1
nomad stadium.
This lets me push painlands, while using bouncelands in conjunction with cycling lands and radiant fountain to recreate the experience of bouncing gainlands and scry lands. I want bouncelands because they provide a life efficent way to produce mana, and also all of their other benefits. They are vulnerable to LD, but that vulnerability can be offset by land recursive engines, thus creating a meta-game relationship.
To increase the hostility of the environment, I doubled up on some of the undercosted phyrexian mana creatures:
porcelain legionnaire,
spined thopter,
moltensteel dragon, and
thundering tanadon. To pressure people to actually play out phyrexian spells, rather than sit on them in hand, I added the same high impact discard I've been using in the penny pincher cube:
persecute,
hypnotic specter, and
nightmare void.
Besides placing the players in hostile, constricting environments and challenging them to adapt, I also want to explore with a number of positional locks and soft locks.
I took some inspiration from Pauper's jund loam, but would like to explore a bit more the idea of using
battlefield scrounger as an engine card to setup of locks with, as well as using
tilling treefolk as part of a land recursion engine. You higher power folks would want to be using
bow of nylea to create a similar relationship.
Tilling treefolk is, in a certain sense, a better card for cube than
life from the loam because it adds to your board presence and can block. It offsets the impact of LD, works well with blink and value reanimation effects, retrace (worm harvest!), and can turn cycling lands or
quicksand into a repeat source of card advantage.
Battlefield scrounger can setup all sorts of lock type effects when used in conjunction with self-mill effects. If you want to recreate a
spider spawning or tight sight type deck, you can do this in a much more compact and less narrow package via scrounger +
spider spawning (or
worm harvest, scrounger +
spider spawning). With a sac outlet, you can create a sort of soft lock with it and
chittering rats (plus some card draw which goes TOL). In addition, you can try to just exhaust the opponent using it in conjunction with cards like
howling mine and
moment's peace.
I think these sorts of prison locks are fine, if you think of it like a martial arts match, where each opponent is trying to maneuver for a submission hold, and there are ways to try to get out of it.
I suppose in mtg terms its a bit like when an aggro deck tries to leverage perceived pressure to create tempo, but in this case its the threat of the the lock that is being used to enable an active, multi-faceted game.