#6 Heath Slater & Rhyno To RAW - 2017

When you think of the best WWE tag teams of all-time, you don't think of Heath Slater and Rhyno. Even so, the two formed a surprisingly entertaining team on SmackDown in 2016.
Even more surprisingly, the two would become the inaugural WWE SmackDown Tag Team Champions at No Mercy that year, and although they lost the titles after just over two months, they would still remain in the challenger ranks until they were drafted to RAW on the post WrestleMania Superstar Shakeup.
Ever since they moved to RAW in these two years, they have done... Nothing. They challenged for the RAW Tag Team titles once or twice, other than that, have pretty much just been a jobber tag team. In fact, they even reached the point where they would already be in the ring after RAW comes back from commercials and wouldn't even get an introduction before another two-minute squash loss.
I don't know if they can be a credible team again, but on SmackDown at least, it's worth a shot.