
1) Classical oracle 2) Mythological Greek character 3) Play by Sophocles
Found on
https://www.crosswordclues.com/clue/amphiaraus

In Greek mythology, Amphiaraus (s; Ἀμφιάραος Amphiaraos, `doubly cursed` or `twice Ares-like`) was the son of Oecles and Hypermnestra, and husband of Eriphyle. Amphiaraus was the King of Argos along with Adrastus— the brother of Amphiaraus` wife, Eriphyle— and Iphis. Amphiaraus was a seer, and greatly honored in his time. Both Z...
Found on
http://en.wikipedia.org/wiki/Amphiaraus
[Sophocles] Amphiaraus (Ἀμφιάραος, Amphiaraos) is a lost Greek play by the Athenian poet Sophocles. It is believed to have been a satyr play, although it is not clear which incident pertaining to the title character was the subject of the play, nor even which incident would lend itself to satyr play treatment. One fragment of this...
Found on
http://en.wikipedia.org/wiki/Amphiaraus_(Sophocles)

In Greek mythology, a visionary from Argos who foresaw his own death in the expedition of the
Seven against Thebes. An oracle bearing his name existed in antiquity at Oropos, near Thebes. ...
Found on
http://www.encyclo.co.uk/local/20688

a hero who joined the Seven against Thebes, although he knew that his death was fated: deified after death.
Found on
https://www.infoplease.com/dictionary/amphiaraus
No exact match found.