Hmm, Dreadnought is a warrior set though o.OThe armor also makes the heroes , for e.g take Alexandros Mograine and his dreadnaught gear "The first suit of Dreadnaught armor was made exclusively for the Scarlet Highlord Mograine. Whilst donning the full suit, the Highlord looked himself to be a demon from the depths of the Nether.
Aye, 'twas quite a sight to behold as Mograine would wade into a hundred Scourge, Ashbringer held high, and come out on the other side in a cloud of dust and flames - enemies left in ashes beneath his feet.
It was not until after his controversial death that the knights and warriors of Lordaeron would wear similarly fashioned suits in honor of their fallen hero. While the death of Mograine was a great victory for Kel'Thuzad, the resulting martyrdom would be felt until the end of the war.
Where one did fall, many would rise..." i think it was said somewhere that the gear made the undeads scared when they saw him , not sure :/