[1e] Making a Headless Character

So, there's this cool spell [Decollate](https://www.d20pfsrd.com/magic/all-spells/d/decollate/). Unfortunately, the spell is absolutely beyond abysmal, effectively unusable.

Let's say however, someone was absolutely fixated on using it. How might they do so?

For context, I'm a Samsaran Wizard. I nabbed a few spells from the Bard spell list, I want to make a Dullahan character (starting at 11th level), but I'm unsure if Decollate is salvageable.