Our heroic achievement group finally catching the luck we needed on the heroic Gotta Go! achievement.
Completing this achievement requires two lucky breaks. Firstly, you need Anub'arak to cast one of his spells sometime before his 75% borrow (the closer to better) so you can push him below 50% to skip a borrow. Secondly, you need him to cast a second spell after the pound he does when he returns so that you can push a kill before he borrows a second time.
In the course of about 75 attempts, we only saw this happen two times. There's a reason this is getting nerfed.