when you ran your chance to block is reduced to 1/3 of its original value, which is usually 25%

for bvb you don't need fbr
fhr
"skill" not alot of skill, just knowing when to whirlwind and not get hit as many times

base vitality
08storm works better then 09 (less dex required) a few 3/20's will help but using alot of +skill to cast Bo is also /very/ helpful
all you need is about ~2300+hp to make sure you don't die in 2-3 hits which insures you can leech it back before they hit you again and kill you

you don't need ravenfrost, or cannot be frozen

08 arreats is nearly as good as itd, but you'll still need /some/ attack rating

eth is not better if you use arreats in conjunction with it