Ape build and Wolf build is similar, it mainly uses hammer. The build you are talking about (staff) is for bird, it WILL work for sure (tested), note that you'd want to get every magic set you can get like mcrit acc, cape, sprite miscellaneous (and pvp set 55 for nice boosts). Also prep int stone for your costumes, then you'd be killing every magic-susceptible classes in record time.

Of course, it gets better when you become a mystic (your main bird nuke gains triples and doubles).  

well 60 sage in general is really tough. But yeah I suppose you could get decent damage reduction. 10% from mastery, -18% from staff shielding, -15% from 60 set. so that's 43%- then with a CS pot you could hit -58% And when appropriate you could go ape for another -20% which would be -78%. I imagine that would be the way to go and switch between the 60 staff and sleep staff mostly. Also with elder of rites and the entire set on perservering that would be -90% crit damage sustained which would help a lot against the 50 bow, 50 shield, and 60 2hand sword.

It would still definitely be tricky but going ape and sleep staff, keeping your 60 relic proc'd (easy since everyone is trying to kill you) and your tick healers going once they're asleep you might have a chance to get close enough to them to root them and get a couple shots with the 60 staff to kill them before needing to go ape/sleep again. If against a bunch of people not much you can do but with an ok team and having a static -58% dmg -90% crit damage you might just be beefy enough to kill some people.