Uncommon form: Once per turn, when you hit a creature with this weapon, if that creature has dealt damage to one of your allies since the end of your previous turn, the target takes an extra 1d6 damage of the weapon’s type.

After the DM determines that you have first rescued someone to whom you owe a life-debt, at meaningful personal risk or cost, the weapon awakens to its Rare form. Its extra damage becomes 2d6. In addition, a creature hit by the weapon has its Speed reduced by 10 feet until the start of your next turn. This reduction is not cumulative.

After completing a one-month downtime project approved by the DM that fulfills the life-debt, the weapon awakens to its Very Rare form. Its extra damage becomes 3d6 and it retains Hobbling Strike. Once per Long Rest, when an ally you can see within 30 feet drops to 0 Hit Points, you can take a Reaction to move up to your Speed toward that ally without provoking Opportunity Attacks, then make one attack with this weapon against the creature that reduced the ally to 0 Hit Points. You must have a clear path and end within your weapon’s reach or range of that creature to make the attack.

At character level 20, the weapon awakens to its Ascendant form. Its extra damage becomes 4d6. You can use Intercepting Dash twice per Long Rest. When you arrive beside the ally using Intercepting Dash, that ally is stable. You may also immediately expend one available use of a healing feature or cast a spell that restores Hit Points or grants a protective barrier, targeting that ally; resolve the feature or spell normally, including its action, resource, range, and other requirements where applicable.