yesterday a monk instantly killed me seconds after he placed on me the touch of karma. panel damage shows :  
""touch of karma 138421 nature damage 
touch of karma 138421 nature damage 
touch of karma 138421 nature damage 
touch of karma 138421 nature damage".... 138k each tick!! 
I know the touch of karma reflects damage done as nature damage,  so when he uses it,  I try to put myself transform into bear form, i stop autoattack and i put me bark skin, so it is absolutely impossible that would make me a total of 1380k damage. 
this happened to me 3 times 
if this happen again, I will not hesitate to upload screenshots of people who know that bugr, and takes advantage of this to win Arenas