I've played this high on the ladder for May, 2017 - keeping top10 for the final two weeks of the season playing it exclusively (except for one dip down to #12 briefly). I've been multiple wins into #2 legend on multiple occasions, but didn't crack #1. There's still a day left and I'm sitting at #7. We'll see if it holds.

The idea is that you play low-cost cards that are conditionally good early, or combine them with Chanter later to get all of your Brotherhood Assassin's out of your deck to get a feisty board while refilling your hand. If things go wrong, you are a value-token strategy. You should almost never play Scouting Patrol on turn 1 against an empty board. In fact, there are some times when it is incorrect to play Bruma Profiteer onto an empty board on turn 2. This deck can sandbag and recover better than most. Unless they are prophecy battlemage or orcs, you want them to hit you a little.

There are a lot of ways you can build this deck depending on the metagame. This version is kind of a middle version, but if the meta slowed down you could run Baroness. If the meta sped up you could add arrow in the knees. If mid-range was everywhere, cards like sanctuary pet would become worth it, etc. I've played this deck a lot of different ways and will continue to change it in response to what I'm seeing on the ladder.

In general, the deck has a flexible gameplan:

Against aggro, you respond in kind, trading as efficiently as possible. Using your cheap cards to trade where you can. Ideally they will break 1-3 of your runes in the process and enable an impactful Chanter turn on turn 6-7. When that doesn't happen, you can also manufacture wins through imperial reinforcements and supports along with imprisons. Nothing flips a board quite like imprison.

Against control you can set-up large waves of creatures, highlighted by Wild Beastcaller's ability to require answers, especially when bolstered with a support. You will eventually set-up a Chanter turn where you cash-in some one-cost actions get get brotherhood assassins with ungolim and refill your hand for the next wave. As long as you are careful, you can be very resilient to mass removal (like icestorm). I've lived through 2x Ice Storms, 2x Dawns Wrath and an Oda to win a game with this deck. Obviously you can have a glass jaw if you aren't careful. With supports and charge threats, you have surprising reach to end it vs. control.

Against tempo/midrange, you have to do a dance. You have low-tempo plays and high-tempo plays. Reinforcements+Imprison is one of the higher tempo plays you can have in this game. It's especially bonkers when you have two imprisons. Against tempo you need to accurately predict how much reach they might have and play accordingly. For instance knowing when to run out a naked imprison to slow down a lane. Pick your line of potential victory and navigate prophechies as well as you can. With a double-support late-game turn you can do a surprising amount of damage out of know where. A good portion of my losses come from misjudging how to play against tempo/midrange since you have many valid lines of play.

Enjoy. TDCJason on Reddit if you want to chat about the deck.