so after theory craft for a month and posting lots of suggestions i can say that
breakrazor buff is very good - you can support very nice with magi and mender alongside invocation line while your nrg above 50% . i had 2k healing per sec for allies
other warbands are useless in any build, power or condi . 2 sec bleed wont do much and adds maybe 1-2 stacks from razorclaw. thus i think even in pve and wvw it wont do much.
sb is useless and very low dmg weapon. AA can put 5 stacks of bleed. #2 hard to hit. #3 if you lucky you get 1 torment. this is not condi weapon rather useless weapon in any game mode
but as you may notice i like to theorycraft and i think i have advance support renegade for pvp. lots of protection, heal, leech, dmg buff. it is not a bunker like my ventari/jallis and lacks stability so you have to be careful . thus its more team fight support.
tried to keep it short as i know everyone already said the same
i will put out video maybe later