It's a spell animation. The skeleton is just floating up and down a little bit, while blood is poring out and flowing down into the trough. The left one is with an additive filter on the blood, and the right one without.
I think I'm going with the right one. Gonna upload it soon, I think it's finished (unless I have another idea for an animation).
Hello, thanks for both of the extensions. (original extension and this extra week till the 21-oct)
I ended up going for 3 tier building, and the extra time will enable me to finish it.
Usually I tend to overcomplicate my projects, so this time I will try to post something functional and then add details if possible.