I have reached the boss inside the mine by the name of ghost of will? Shadow of will? I am able to escape two of his sword attacks. The one the swords form a front of swords and move straight forward. And the one you simpley need to walk to avoid them. The one I can't avoid is when the sword sort of target you from 4 different directions, as if they circle you. I tried moving and I tried jumping, but they hit me every time. What should I do to avoid them?
Uhm tbh, the easiest way to avoid them consistently is to just jump away in a 90° angle if you imagine a line from Dularn to you. I hope you get what I mean.
Also, there is no need at all to use the speedboost from air slashes to get out of the way as Ranzor mentioned. A single normal jump does it.
And actually you don't even need to move mid air at all, you can just jump at the last moment before they hit you and land in the same spot and they will not touch you. If you are new then try the strat I listed above though, doesn't need much timing.