Illusionist's Cane Sword

This weapon benefits from proficiency
with Clubs and Bladed Weapons.
If you have either proficiency, attack rolls
with this weapon gain advantage.
Whenever you succeed on a GRACE roll
to attack a spirit or undead creature, roll
WEIRD. If the result is a full success, the
enemy takes additional damage. If the
result is less than a full success, your attack
has no effect.