This quest was marked obsolete by Blizzard and cannot be obtained or completed.
Speak with Tok'Kar in the Swamp of Sorrows.
Before you take rest, speak to Tok'Kar again. While you were gone I believe he finished a few weapons. For your help here, he would offer one of them to you. You would do well to test its strength against the fish men when you are ready... but only to please me further.
Ah, <name>, you've returned. Good. I've finished crafting more weapons for our fight against the murlocs. For bringing us the fresh sawtooth meat, and for bringing a small smile to Katar's face, I offer one of them to you.