We knew Battle of the Bastards was big, but we had no idea just how astonishingly big it was. Yes, Bastard Bowl is nearly upon us and Game of Thrones’ “biggest” action sequence is set to roar on to our screens, obliterating anything that’s been done on television before.

As you may have guessed, it was a bit of a pain to pull off. Entertainment Weekly went behind-the-scenes during the filming of the upcoming episode and broke down the staggering numbers for everyone to marvel at.

According to their report, the face-off between Jon Snow and Ramsay Bolton took 600 crew members, 500 extras, 70 horses, and more than $10 million to film over a period of 25 days. 

Game of Thrones

The horses, in particular, were a nuisance, writes EW: “One of the most difficult aspects of making the battle. You typically only see horses in a war sequence nowadays in a major big-budget Hollywood film as the animals are notoriously difficult to coordinate – and quite expensive. Adding horses typically makes the process of shooting a scene take twice as long.”

“Every battle on Thrones is unique,” director Miguel Sapochnik — who also helmed season five’s Hardhome — told EW.

“I think that’s why [showrunners David Benioff and Dan Weiss] keep doing them. In the case of ‘Battle of the Bastards’ — or ‘BOB’ as we affectionately called it in production — David and Dan wanted to do a thing of spectacle, a strategic pitchfield battle they hadn’t had the resources to do back in season one or two. I was particularly interested in depicting both the horror of war and the roll of luck in battle.”

So, there you have it. We have the astounding numbers that give us some very interesting insight into the biggest damn thing Thrones may ever do. However, we’re still curious about some other rather crucial figures, like how many characters will be killed? We’ll have to wait and see, of course, but we’re guessing the death toll for this episode will be substantial.