Prerequisite: 17th-level ArtificerItem: melee weapon (requires attunement)
The wielder’s attacks with this magic weapon score a critical
hit on a roll of 18-20 on the d20, and they can use the weapon
as a spellcasting focus. It also knows the steel wind strike
spell, and can cast it once without expending a spell slot.
The wielder of this magic weapon regains the ability to cast
the spell without expending a spell slot at the following dawn.