Already proven wrong when Kallavan said he would've taken massive damage to his body if he didn't sacrifice his arm. That was with both arms and EoB. Doesn't matter that White didn't do much damage before, especially when Kallavan himself did 0 damage. because White only started getting serious...
Pure speculation. We don't know how much each attack contributed to his arm being sacrificed. What we do know was that Kallavan said he would've taken massive damage to his body from Whites attack if he didn't sacrifice the arm. Meanwhile Kallvan couldn't put a scaratch on white even with EoB...
