Have you considered adding an extra Willbreaker to your main? 2 seems a bit too few considering you rely on her for the engine of the deck. But I think this deck looks great, probably going to get it tonight for FNM tomorrow. How has your playtesting worked out?

I have considered an extra, and it might be good, but Willbreaker is not necessarily the engine. It is the overpowering endgame against decks light on removal but the rest works well without it. Thing is, you really want a lot of mana before it becomes effective.

Playtesting has been going pretty good. My one complaint is being too vulnerable to Radiant Flames. I'm thinking Archangel of Tithes, Woodland Wanderer or Ojutai Exemplars to replace the Whirler Rogues.

(oh and having a bigger blocker would be nice too.)

Archangel of Tithes has that 3 white cost, which seems like it is risky to play. I found the Whirler Rogues to be a bit underwhelming. With Willbreaker in play, cards like Send to Sleep and Refocus are quick ways to get creatures on your side as well as set up blockers / stifle attackers.

Went 1-2 in FNM, lost to atarka red and then to jeskai black but I got landscrewed both times. Warden of the First Tree was great though, managed to pump him up to an 18/18

Hey I went 2-2, also had problems with landscrew. It's a fun deck, could use some tuning yet.

You mentioned Kiora in your deck description, but I don't see her anywhere in the deck. I do like the deck tho (+1). There are a lot of different ways to handling a lot of different situations. Well done.

Kiora was there pre-Oath and isn't now, but may be again. Willbreaker also, I think can be excellent as a surprise weapon or a sideboard option against decks that have limited removal.

I just had this exact idea. I'll experiment be experimenting with this!I'll add 4x Anticipate, take 2-3 lands out, 4x Evolving Wilds instead of fetches and see how Grip of the Roil works out.

Evolving Wilds may be good. Anticipate is wrong I think because the deck prefers to be more active. Grip could be a good one. Cast it immediately after they play a creature, and it's like a reflector mage. Their creature is out of commission for 2 of your combat steps.

This deck looks like an absolute blast, but there aren't better creatures for it?

Maybe there are. But a lot of the point of this deck is we don't need better creatures.

In the more common Coco strategy, eg, Company of Humans, there's very little interactive play, but a ton of better creatures, and they just aim to overwhelm the opponent with efficient guys.

If I were to play against such a deck, my guys are inferior, but the cards I play to prevent them from effectively using their creatures, and I hope to win the beatdown.

Ouch, Pia and Kiran Nalaar showed up with a bunch of other thopter-makers. My 2/1 flyers for 2 were not happy. Drop them, side them out for something, find efficient token removal or pump with Thunderclap Wyvern, what else?

Slip Through Space is another idea out there. Displacement Wave for X=0.

Displacement Wave turns out to be awesome in a huge number of matches. Also, against the Thopter deck, the game plan seems to be focusing on the ground assault until you can clear the air.