Thread:Ocaveraryna/@comment-36554892-20201008193820/@comment-46638519-20201010083539

There is also a modded Minecraft boss (Aether Legacy and Aether II) called the Slider, which is a large cube with 4 eyes (one on each side) which glow in the dark as well as a symbol on top of it.

It can only be killed with pickaxes, but it can only move straight directions so keep staying diagonal to it at all times as it can hit quite hard.