What is the author's style in Iphigenia in Taurus by Euripides?

The prologue precedes the action of the play with a description of what will happen in the subsequent narrative. This may seem odd to modern theater-goers, who expect to experience surprise in watching a play. But the purpose of theater and therefore the purpose of the prologue was different in ancient Greek times. Fifth century Greek theater was closely aligned with solemn religious ceremony.