If you were to find a perfect ed atlantean, 250%, upgraded to mythical sword it would do 140-175 damage. The worst would be 200%ed, and dmg would be 120-150. If you find those damage numbers to be good enough for you, then it'll be fine. However in hell games with other players in the game, you'll find this might not do enough damage. If you're mainly a single-player person, this should be fine. Good luck with your avenger. oh btw, upgraded Atlantean to mythical sword will change the sword to a lvl req of at least 66. so keep that in mind.