Wrestle is enough. I have overkill of 70 DCI before preservance. Witht he 4/6 chiv I can heal/cure and res quickly. With wrestling I can disarm or para hit so that I'm not a soft target.
Pretty much a 100% defensive template.
When adding in the masteries provo is really good for gank squad, and peace is really good for being the underdog.
In either case the extra HP from Invigorate or the damage reduction from preservance, typically allow me to ignore a good portion of the initiating damage I receive when attacked for the first time.
I also have a peace/provo myst focus wrestle bard. Similar to the chiv bard, but can contribute alot of damage in a gank squad, and gets significant damage reduction from stone form and preservance. Its very tight on mana, but you can sacrifice one of the bard skills for meditation if you really plan on casting alot but you're buffs wont be as good.