Ancient Longsword Hilt

This longsword hilt is made of a blue crystal, with black metal and gold filigree making up the guard.

You can expend a first level spell slot into the sword to conjure a blade that deals 2d4 damage based on the spell used for 1 min. Using a higher level spell slot increases the damage by 1d4 per level, or the duration to 30m/1hr/8hrs/24hrs/1week/1month/1year/indefinite (you can mix and match the damage/duration increases when using a higher level spell slot). The blade has an additional effect based on the spell used. (Up to DM's Discretion)

Notes: spellcaster, Damage, Combat