Originally posted by XSUPREMEXSKILLZ
Sure, they aren't necessarily proportionally related. But the point stands that Arcann is obviously infinitely more powerful than Kas'im, and we've seen him on screen dominate the Outlander/Hero of Tython, who would also annihilate Kas'im, all things considered.
I have yet to have this confirmed but I've been told the HoT was weakened when he faced Arcann.