Spirit Slash

Your extensive martial training granted you a powerful fighting technique, granting you the following benefits:

• Increase your Intelligence, Wisdom, or Charisma score by 1, to a maximum of 20.
• You learn the steel wind strike spell. This spells damage type changes to the damage type of the weapon you are using as material component for casting this spell. You can cast this spell without expending a spell slot. Once you cast this spell in this way, you can’t cast that spell in this way again until you finish a long rest. 
• The spells’ spellcasting ability is the ability increased by this feat.