Why is it called Invincible if I can see it?!
Trolling aside, I got Invincible last week! It took 68 attempts according to Rarity, which means like a few more than that but not many. Pretty lucky honestly. While trying for the mount, I’ve also been collecting tier sets from ICC. I almost have all of them, so I’ll likely finish them up. It’ll be easier now that I don’t have to even bother finishing the raid during my transmog runs!
earthwormgem
Peter (Devee)
Kor'kron 501st 
Congrats on the mount! I don’t think I have any rare drop raid mounts. Though to be fair, I don’t make the effort to farm them.