The magical pole was of fixed length, 2 in (5 cm) in diameter, and rigidly inflexible. It could be wielded like a staff and could damage creatures immune to non-magical weapons. The decastave could be dissipated in a few ways:
- The wizard let go of it intentionally or accidentally.
- It was pulled from the wizard's grasp by one or more opponents exerting sufficient strength in a united effort.
- It was cleaved by metal.
- The spell's duration was exceeded.
Once per casting of this spell, the wizard could elect to drain a small amount of health upon a successful hit. The health was transferred to the wizard similar to a vampiric touch but could not increase health beyond normal capacity.
This spell required verbal and somatic components, and a small piece of wood that was consumed by the casting.