*2H mastery isnt the the big deal here too, but with the right stats u wont have a lot of STR so it helps i get the most out of it.
also, u said its a flat number, the same with cleave 50 crit rate. even if i do 200% more dmg to stuned targets, any skill that hits more than once will do almost the same dmg, split into 2+ hits.
*block archers and other swordsman, as well monks, i dont see how it could be bad. if u are facing a catagoon build or a musketer and have no block u will have a hard time. And if u are going for doppel u will have 0 defense, so block is even more important
*if u are facinga cleric using stone skin (without bloodleting of course) u can use crown to reduce the SPR so can hit the guy, and/or set up zucken for bonus dmg. and its usefull for pve too cus u can use it on magic mobs, bosses.
*swordsman 3 is great, if the enemy team doesnt have a PD or when PD dies (we can help that with iron hook and knockdowns). u combo with cyclone and geat AoE perma stun/slow. that also works great for pve, when facing a lot of mobs or a elite (DOV increase AA speed so u can almost perma stun 1v1 with auto atacks too)
also, u have max level pain barrier, thats 29secs with 39 secs cooldown, its important for pvp…
*50% slash dmg? duno where u saw it lol and u combo with the skills i said cus u will be high>barb3>doppel