The next challenge for owners of the Killer Instinct Pin Ultimate Challenge has been declared today and it’s the same challenge that went active for all KI owners a couple of weeks ago: ‘Come At Me’. The ‘Come At Me’ challenge requires you to complete fifty Combo Breakers, a very simple achievement that can easily be done by its July 7th due date. The Pin prize for this month? Spinal’s Shield! There isn’t any artwork available for it as of this moment, but we’ll be sure and share it with you as soon as it is. Oh and don’t worry if you’re not an owner of the Pin Ultimate Edition. You’ll still be able to purchase the pin directly from the Penny Arcade website when it’s up for sale!
For additional information, see Mike Robles’s post on the Xbox Forums.

I still haven’t seen this challange listed on the news updates within the killer instinct game. Luckily I check here often or I wouldn’t have known. I kinda stopped trying to get every challange achievment that pops up and only focused on it if it was a Pin Challange. I got the Come At Me achievment already but its sort of not fair to make this a challange with now only 10 days left I think and still no real mass notification about it on the page.
the guy said it was live since the last ki update so there most have been a issue posting to the meld in KI
I never received the email for that pin also. Username jer0009
Wow they are super behind on this pin thing. Any word on May’s pin the cat?