I made a (very) rough plan for my Standard deck. As much as I resent using Eldrazi, they unfortunately make up a large chunk of its creature base-- but it's all for a good reason, and I hope it runs well once refined.
Here it is-- I have no idea how to lay the mana base out yet, not until I figure out what spells I want to cull down. Advice appreciated.The overall theme of the deck is the flicker mechanic, and I'm proud to say I came up with the vast majority of this without any help at all-- no netdecks as examples and no framework to model it from, and only card suggestions from my shopkeep pal for making it work.
What I wanted to do was be able to put my shiny new Avacyn card to use, because she has a ton of potential-- but I was wondering, how can I use her to full potential-- and that is to say, how can I use her without nuking my own side of the board? The key lies in flickering. So, if I was to flash her in on my opponent's attack phase as attackers were declared, all of my cards would be indestructible, which preserves my side of the board and allows me to block as I please. And since this deck revolves around Eldrazi Scions as fuel, bait, and chump blockers, I should be able to block a nice amount of things! So, once she's out and the attack phase is over, on end phase, I will sacrifice an Eldrazi Scion. This triggers Avacyn's transform mechanic. So on my upkeep, she will flip, and in response to her flip, I can use Eldrazi Displacer or Essence Flux to quickly flicker her. This way, she comes out as a fresh cast, and all of my board gets indestructible. This will deal 3 damage to my opponent as well as 3 to all of their creatures-- and more likely than not, what isn't killed is likely tapped from their attack, allowing me to go in for a heavy blow. And since Avacyn is freshly cast from there, I can (and will) repeat the process!
And of course, since I only have one of her, I can't rely on always getting her. So I threw in some Eldrazi worth flickering as well. Most importantly, it would be Blight Herder. All I need to do is keep flickering it, and I will keep getting 3 Scions on the board each time I do it, so long as I have Mist Intruder and Benthic Infiltrator constantly ingesting their deck-- not hard, because the former is flying and the latter is unblockable. This is important, because they are fuel for bigger things, and can also let me stall. Conduit of Ruin will let me go in and grab Desolation Twin or Breaker of Armies-- and of course, it's the former I would want in, because Desolation Twin can be flickered as well to keep producing 10/10 tokens. Thought-Knot Seer, as much I think it's annoying and cliche and overused, is also flickerable, which will let me not only keep constant tabs on the opponent's hand, but also eliminate threats. Of course, flickering it means they draw a card, but since it gets re-cast right away, I can quickly dispose of it if needed. This can also be combined with Reflector Mage-- who can also be flickered to utility. Cast it, send a threat back to their hand that they can't recast, and take it away with recasting Thought-Knot Seer.
Flickering is managed well and accessible, via 4 Eldrazi Displacers, 4 Essence Flux (new card, one-drop blue that has a benefit with spirits, but since I have none, meh), and Eerie Interlude, which while more risky and heavy-handed, is much more broad in effect. Imagine pulling back Avacyn, Reflector Mage, Thought-Knot Seer, Blight Herders, and Desolation Twin all at once. It'd be beautiful.
Everything else is kind of up in the air. Since this is essentially a control deck, I filled it with lots of kill and counter spells, including the very useful Ojutai's Command, which will not only counter, but also help with card draw and life boosting in a pinch.
Also, Sorin is in, just because. The deck has his colors after all, may as well pop him in since he's a destructive force on his own, capable of removing tons of threats with his -X -- and since this deck is full of high-CMC creatures, his +1 can be devastating. His ultimate is kind of an "I win" button if I get him in in enough time, but not really necessary in a deck like this. (I will, however, like to splash him in my lifegain deck. Hahaha.)