Quote from ShadowyWhisper

No offense, but if you build your economy without securing your army, your opponent may attack and kill your lonely SwordWrath at the center. Then he would target your miners. GO ON THE OFFENSIVE IF YOU SEE HE HAS NO DEFENSE. And how do you know if he has no defense? Stay CLOSE. That way your Archidon can hit his 2nd row miners and he'll be behind economically.

No offense, but the lonely swordwrath isnt going to be at the center. Its going to be harrasing (or trying to) the enemies miners on the other end, if hes stupid enough to have a little miner city and no defence. (early game) Also, if he has a form of defense, (eg. a spearton), he will have little economy, and by the time my sword is retreatin gfrom the spearton he has, I already have a spearton of my own loaded (or at least half done), and if he spams swordwrath after that initial sword of mine, I will already have a archidon loaded and my sword will be retreating for the center, where my archer and sword will meet the opponents swords. So the initial sword is just a spy/ harrasser.