Originally Posted by
TGCRequiem
1) Cut the two swamps. They're completely unnecessary. Use one of those slots for the 2nd Dryad Arbor when you get it instead of cutting Pendelhaven. Black Mana is rarely needed game 1 especially if you aren't running any maindeck Abrupt Decay. Two black duals plus Birchlore Rangers is usually enough black post board. Use the second cut swamp for a Birchlore Ranger.
2) Part of what makes Glimpse so great is Gaea's Cradle which it doesn't look like you're going to have either of, at least for the time being. I bring this up for two reasons. First you are going to struggle quite a bit even casting Beck, let alone having excess mana to cast other creatures once you do. Secondly Glimpse draws a card on casting where Beck requires a creature to ETB. This may seem minor but you're going to run into a lot more issues of people allowing the Beck to resolve and counter the creature giving you no card draw. I actually think it might be better to just replace the Beck with more of a toolbox until you can get Glimpse. Perhaps maindeck Scooze, Gaddock Teeg and two Abrupt Decay instead...or a 4th Natural Order when you get it. I would also consider 1 Shaman of the Pack here. Don't worry about needing white for Teeg, the plan is to cast him off Birchlore or through a GSZ.
3) Sideboard If you can get 3 Cabal Therapy (relatively cheap) I would replace the Stain the Mind, Beast Within, and assuming you cut the Beck the slot opened by Scavenging Ooze.
4) Until you get a Progenitus I would consider running a 3rd Thoughtseize as well instead of Thrun.
In short your list will definitely get some of the quick Natural Order wins, but it will be at a lower rate without Cradle. You still will be able to grind decently, though bouncing Overgrown Tomb with Quirion Ranger is a bit more painful. I really fear that Beck is a not going to be even remotely effective for you and so it'd be better to just run another Forest over the Breeding Pool. That costs you a lot of value as Glimpse chains are great, but I think the toolbox will offer you more value than Beck will.
Those are my opinions on how to get the most out of what you have. Hopefully it helps.