Sculk Dimension Mount

Everyone wants a sculk dimension, but I think one of the reasons Mojang is holding back from doing so is because it is practically unsurvivable, thanks to the fact that you would need to sneak literally all the time. And the warden is just one of the many threats, probably not even the hardest! Assuming this is true, I have the answer: a mount.

I'm not actually sure what it would be, but in most instances, it would be considered super op. However, since the sculk dimension is so hard to survive, said mount actually gives you a good amount of power, but not too much. They're pretty much required for survival there, though. They meet players just past the portal, and are either a passive or neutral mob. To avoid letting players wreak destruction on the Overworld or any other dimensions, said mount can't actually go through the portal, either because of size or fear. (or both.)