...If you're so weak, then just...kill the nearby goblins as fast as possible. Don't just kill the big one in front of you. Kill the nearby goblins, then kill the Goblin Legend. Like, there's a shitton of goblins around you right at that moment. Dodge the Goblin Legend and kill the nearby goblins. I feel like such a move is obvious.
He's a bit annoying for an idiot.