Quote Originally Posted by ChemicalBurns View Post
I tried exactly this. I trimmed them down to zero, but then immediately regretted it. I think 2-3 is a comfortable number, but I feel like the full four is semi-unecessary, unless you're doing some Crucible shenanigans. We mainly want it, as you said iostream, for random utility lands (especially Port, killing these has been incredibly useful at least for me, since this can really delay your threat deployment), but otherwise Factories have been a bit more useful to push those last points of aggression through. At the same time though, to fit all these utility lands in I've cut Urborg, which is kind of depressing, since it can be very strong at times. I might cut the Factories or Caverns down to three to fit at least a singleton in.

Also notable the list featured leaned heavily on Diamond, which is interesting. Really curious on what the full list looks like.
Personally, I like 2 Diamonds. 4 without Crucible support results just in too many dead draws imho.

I would never cut down on the Cavern numbers since it gives you so much game vs blue decks it's ridiculous.

You and iostream make good points about Wasteland. I'm considering 2-3 Wastelands. 1 could go into my flex slot (currently Kor Haven), but the other copies would have cut either into my Brushland or Factory count, and I'm not really thrilled about either. I could see cutting two Brushlands, but I don't think I could support RiP in that case anymore.

My proposal: We take a look at all relevant decks and list what are problematic cards and brainstorm how we can/could handle them in the most efficient way without wasting too many slots. The more overlaps, the better. I think that might speed up the streamlining process quite a bit. E.g. RiP was really very good vs Dredge, okay/good vs Lands, meh vs Reanimator (too slow). Leyline might address this match-ups differently, but has its casting cost as a major drawback. Not sure what's the best formating for said list - either by cards and their usefulness in match-ups or match-ups with cards that are relevant in it (problematic cards vs our answers).

For reference: Online and Paper metagame.