Just got Invincible (36 kills) and Al'Akir's mount (38 kills). This week and last week have been amazing for me, having looted Mimiron's Head (32 kills) just 6 days ago. I think the game is kind of rewarding me for my extreme bad luck since Vanilla in anything mount related. After these pulls I can't really complain about some things that happened to me on previous expansions (RNG related).