That seems ok, but someone with a good enchantment removal skill could really dish out some pain to that build. Then after your enchants are gone some health degen and spike damage would do even more damage.
...well...if you make a good enough variant of this build...theres a good chance in random arena that 4 people won't be able to kill you...partly due to excessive tanking...partly due to randomness/no enchant removal...mostly due to incompetence...
...so...it'll take you about 30 mins to win a match...but you'll win when everyone's bored...in Tombs or GvG though...it won't piss anyone off...you'll be promptly dragged out and shot >.>
Bonnetis out for balth spirit
Healing Hands out for shield of regeneration
res sig out for live vicariously
mending out for watch yourself!
mend ailment keep
heal sig out for remove hex/smite hex
Breeze out for heal area
then tactics, healing and prot. never ever died in arena with this (i didnt have sor, had vig spririt instead)... unless they had enchant removal.