Survival Time is a Minecraft survival RPG server with a lot of features to help make it more distinct. Its custom leveling up system allows you to level up by doing the games objectives, like smelting, mining, and killings mobs. The more you progress, the more you will unlock. It also features custom skills similar to that of McMMO, but with extra abilities that can be unlocked after a certain level.
Survival Time has custom enchants and dungeons too! They may not be super unique, but this is an RPG server, so cool nonetheless. It has advance mobs that level up and become harder to kill as well as enhanced caves with small tweaks to make things more fun (like custom mobs, losing hunger faster, blindness, etc...). There is also NPC trading that lets you trade mob (and other) drops to upgrade your gear and many other small features that just make everything better.
Finally, Survival Time is a great server that will be well worth your time. Join now and come check it out; after all, playing a server is way more fun than reading about it!