I think that the life force clock shud be always on screen, like in a bottom corner, and if they did this the walking body would be the best life force clock for the job.
As for LF's interaction with dungeoneers, I believe he appeared to dungeoneers more often cause of the spy glass, which I would love to see come back as it really was a good way of getting information rather from oracles.
Also in the spy glass, you would always get the witty conversations between LF and his lackeys, and just as much tension when the alert goes off and LF looks directly at you! Now that's cool!