Viridian Balmung

The Viridian Balmung is one of three Balmung upgrades as reward for completing the miniquest Koschei's Troubles, released on 18 February 2013. It is obtained by detecting curses on the gem during the miniquest and handing it to Kharshai to unlock a new memory. It can be changed into the Achromatic Balmung by right clicking and selecting the "Toggle-colour" option. All enhanced Balmungs have a 45% damage boost when used against dagannoths and grants 35% damage boost to dagganoth supreme. The boost does stack with the one recieved by wearing the Fremennik sea boots, it grants an additional 10% damage boost against the dagganoth kings. However the bonus damage is lowered when using abilities.

Trivia

 * In Norse mythology, Balmung (or Gram) was the magical sword of the hero Sigurd or Siegfried as known in Germany.
 * Wallasalkis are affected by the Balmung effect as if they were Dagannoth, but interestingly don't count toward a Dagannoth slayer task.
 * The knock-out aura does work with the Balmung.
 * This weapon does not have the same effect on the Spirit dagannoth summoning familiar.
 * It has the damage and accuracy of 2h Barrows equipment when not used against Dagannoths or Wallasalkis.
 * Viridian is a type of blue-green pigment.