I'd swap one Doom Blade with a Go for the Throat . after sideboarding, you can make the switch depending on wether your opponent is playing robots or not.

i'm surprised at what little you have in terms of ramp... might want to run Birds of Paradise alongside Deathrite Shaman running both would allow you to cast your lilianas and cliques by the second turn.

I'm not sure if the spoiler was a fake, but i think the dimir uncounterable spell costs UB and says counter target spell unless it's controller pays 10 life. though with a heavy colour requirement i'm not sure it's something worth considering...

+1 btw. I'm not a big fan of Jund either

How does this differ from shardless bug?How does this deck win?

well it looks like it wins with Umezawa's Jitte slapped on one of the creatures for beats, general goyf beats, Jace, the Mind Sculptor ultimate, or Creeping Tar Pits, or any combination of those.

This deck is grindy, and will come out ahead thanks to the combination of Brainstorm effects, Shardless Agent, and Ancestral Vision. These cards easily set up a Ancestral Recall which puts you miles ahead of your opponent who has been getting disrupted all game.

Also in the current meta having Deathrite Shaman puts you in a good spot against most decks. Especially good against reanimator, but is a solid 1 mana planeswalker, gets you that turn 2 lili or turn 3 jace, or your turn 2 Shardless Agent into a Hymn to Tourach.

This is basically shardless bug albeit with fewer Force of Wills than normal. The Umezawa's Jitte makes no sense to me as the legend rule allows your opponent to have one when you do and this deck is not made to abuse it.