User blog comment:Cfp3157/Season 3 Episode 7: Achilles vs. King Arthur/@comment-4552610-20130531232315

Doesn't Excalibur's scabbard grant Arthur immunity from wounds inflicted on him? Achilles doesn't have any magic weapons of his own so he won't be able to severely hurt Arthur.

Also I thought Achilles was just unhurt-able but his heel was incredibly vulnerable and he would die from one hit to it.