Tiresias predicts that Narcissus will live a long life as long as he does not see his reflection; when he does, it leads to his tragic end. Tiresias predicts that Narcissus shall die if he sees his reflection; embittered, Narcissus scorns all lovers because they only talk of his beauty, which he cannot see.
A counter claim is the claim of the opposite argument. This is important to add in your essay so you can show both sides of the arguments and then use your rebuttal to debunk or disprove the opposing claim.