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An energy cutlass is a Covenant melee weapon primarily used by the Kig-Yar. It is a shard of pink, glass-like crystal. The Kig-Yar use them primarily to dispatch enemies in close-quarters fights. The weapon has a self-destruct ability, causing it to explode when the sequence is activated.[1]

The Unggoy also used energy cutlasses on the Tiara during the First Battle of Harvest.[2]



  1. Halo: Contact Harvest, page 125
  2. Halo: Contact Harvest, page 366

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