However, something happened after Raimi and Campbell made "Army of Darkness" in 1992, completing Ash's arc in the process.

It has nothing to do with (franchise hero Ash) or any particular character. In Army of Darkness, we first saw three books. So we know there are three out there, and none of them are any good.

When it comes to horror trilogies, they don't get much better than Sam Raimi's Evil Dead films.

A third entry, ‘Army of Darkness’ expands the scope (and time period), transporting Ash to 1300 A.D., where he must retrieve the Necronomicon and battle an army of the dead so he can return home.