Staff of the Diviner

+1 weapon. Can be used as a Arcane Focus.
Store up to a 2nd level spell. Use the save DC, attack bonus, meta-magic & spellcasting ability of the caster, but otherwise treat as if you cast the spell. Spells cast from the staff are no longer stored in it. Releasing the spell takes 1 action.
Special - If Magic Weapon, Shillelagh or Spiritual Weapon are stored and then cast onto the weapon, the duration of the spell is doubled.