Dieyno the Warlock, Eye of the Graeae, is a Unique Ghastly Seraph found in the Plague Tunnels Level 1 in Act V of Diablo III. He may spawn when the cursed chest is touched (alternatively, his brothers Ennyo or Pemphrido may spawn).
In combat, he has Molten, Orbiter and Waller affixes.
- Like his brothers, this monster is named after one of the mythic Graeae Sisters, Deino. The title is a reference to the sisters having just one eye to share among the three.