Quote Originally Posted by Leshrac82 View Post
Repeal is the only real removal you have in UG, and while it is versatile, it's usually not a permanent answer.
You're missing the point. The point is that you don't need permanent answers. With the consistency and acceleration tools that are available to the deck (Show and Tell, Brainstorm, even Repeal itself), all that matters is that the game-ending card gets on the field before you die.

Quote Originally Posted by Leshrac82 View Post
You don't have any cheap boardwipes, just Ugin - from my experience, i want my boardwipes to be cheaper than that. And Ugin doesn't help against Eldrazi. (Warping Wail is fine, no argument from my side. But that's available for every deck.)
You're right, Ugin doesn't help against Eldrazi. Of course there are some matchups where I board it out but that's okay. I only have two of him and Brainstorm filters the dude out. I don't actually think of him of a boardwipe as I do think of him as a win condition that needs to be protected anyway.

Quote Originally Posted by Leshrac82 View Post
When i'm talking about alternate winconditions, i mean it this way: Against many decks (most combo decks, Burn, sometimes Delver) you usually don't get the time to cast Primeval Titan and ramp into Eldrazi. You can try to buy some time with different control elements, but overall it's just an advantage to have a way to steal the game. That's why i play Dark Depths - i wouldn't play that in UG, because Show and Tell should do that just fine. For me this would be the most important reason to play Show and Tell. Of course you can also play mindgames with it or use it in a different way.
I'm not disagreeing with that. There are several situations where the deck may transform into a worse Show and Tell deck. You seemed like you were saying that was the primary use of the card and I was explaining that the card's role was far from narrow.

Quote Originally Posted by Leshrac82 View Post
I'm not that experienced with UG-Post. I tested a lot of different builds to compare them to my own, and out of all the builds i tested, UG was by far the worst for me with a winrate of ~35%, so after ~40 matches i stopped. Maybe this particular build was just bad, but i was very unimpressed (against combo decks it wasn't better than most of the other builds, and against everything else it was just worse).
I would imagine that the playstyle of the various 12-post lists are very different. I found myself having a lot of trouble with the mono green version myself. I don't know how to describe actually playing the deck, but I might sum it up as a reactive deck that doesn't start with a plan, tries not to die while it thinks of one, then attempt to execute said plan. Also, never ever feel too comfortable and be prepared to improvise A LOT.

Vs combo the deck makes a radical transformation into a miracle-esque deck. The boarding plan vs different combo decks are very different. Against storm for example, with my decklist the plan would be:

-1 Ulamog
-4 Primeval Titan
-2 Ugin
-3 Needles

+4 Force of Will
+4 Flusterstorm
+2 Krosan Grip

The deck becomes all protection spells and the only win condition left is Emrakul. Use brainstorm and Sensei's Divining Top to either find or hide counterspells. Repeal, Krosan Grip and/or Warping Wail to kill or at least stave off problematic cards if that's relevant. Krosan Grip is the worst card to side in, but it's better than the stuff that's being boarded out and it actually has applications in stopping the combo for those that don't expect it (If the storm player casts Lion's Eye Diamond then a ritual, you can destroy the lion's eye diamond in response).

Against Sneak and Tell I would use this boarding plan:

-4 Crop Rotation
-2 Ugin
-1 Bojuka Bog
-1 Ulamog
-2 Vesuva
-1 Ulamog

+4 Force of Will
+4 Flusterstorm
+3 Krosan Grip

In this matchup I actually would keep Primeval Titan in because the fact that this card and Glimmerpost have ETB triggers can be used to your advantage (putting them in using opponent's show and tell, destroy whatever enchantment they put in while trigger is on stack). I expect very little hand interaction from them so I hoard as much counterspells as possible in my hand and use fetchlands much more aggressively/liberally.

Quote Originally Posted by Leshrac82 View Post
Another reason i didn't like UG was actually Brainstorm: With just 4 fetchlands it's very likely you can't shuffle after a Brainstorm, so it is much worse than in any other blue deck with usually 8-10 fetchlands. It's also dead against Chalice and dead against Countertop
Brainstorm I can actually see, it's a bit of a finicky card. Generally I've been pretty happy with it because it adds so much consistency to games where I don't get the sensei top and allows me to be a bit more reckless (purposely getting top dazed for example). That said, the times where it bricks do tend to stand out.