Klause

Klause is the final boss of the Bandit's Keep. He is known for his tough boss battle, as well as dropping the https://vignette.wikia.nocookie.net/minecraft/images/thumb/c/cf/EnchantedDiamondSwordNew.gif/16px-EnchantedDiamondSwordNew.gif  [Edge of Ruin], one of the best swords in the game before the release of raid content.

Abilities

 * Vexes: Klause summons Vexes periodically throughout the fight.
 * Fangs: Klause summons fangs from within the earth, dealing damage to all enemies struck.
 * Archvexes: Four Archvexes join Klause during the fight. The vexes are able to set enemies struck by them on fire.
 * Lightning Bolt: Klause can summon lightning bolts on players, dealing heavy damage and setting them on fire.
 * Undead Kraxx: After Klause gains enough power, he summons Kraxx, a dangerous, zombified Villager who deals poison damage on touch and requires a separate tank, as he deals heavy damage.

Loot
Klause drops pieces of the Shadiamond and Bandit sets respectively, as well as Diamonds and Emeralds on death. He also has a chance to drop either Light Grey Terracotta in groups of four, or very rarely, a Black Glazed Terracotta.
 * https://vignette.wikia.nocookie.net/minecraft/images/thumb/c/cf/EnchantedDiamondSwordNew.gif/16px-EnchantedDiamondSwordNew.gif  [Edge of Ruin]