Source: Tal'Dorei Campaign Setting

Weapon (flail), legendary (requires attunement by a non-good character)

Utilized in countless tortures and slow executions, the hooked chains of this brutal weapon still smell of dried blood and rot. You gain a +2 bonus to damage rolls made with this magic weapon.

When you hit with an attack using this weapon, and that creature was injured with this weapon on your previous attack, you deal an additional 1d6 piercing damage.

Awakened. When a character awakens Agony, apply the following changes to the item’s traits:

  • The bonus to damage rolls is increased to +3.
  • The damage bonus to striking a creature you have already injured increases to 1d8.
  • When a creature is damaged by this weapon, they suffer disadvantage on Strength ability checks until the beginning of your next turn.
  • When you drop a creature to 0 hit points with an attack using Agony, you can immediately make an additional melee attack with this weapon as a bonus action.

Exalted. When a character exalts Agony, apply the following changes to the item’s traits:

  • The bonus to damage rolls is increased to +4.
  • The damage bonus to striking a creature you have already injured increases to 2d6.
  • When you score a critical hit with this weapon, the target must make a DC 17 Wisdom saving throw or become frightened of you for 1 minute. If this saving throw is successful, not only does the target not become frightened, they become immune to this frightening effect for the next 24 hours.