Is Alexander supposed to be strong or not?

[Ghieri]

When Daniel writes that Alexander is "old and weak", he's clearly lying - had he written that Alexander was otherwordly strong, then Daniel probably wouldn't have had the courage to get revenge...

Did I fight the same Alexander that everyone else fought? Because he did not pose much of a challenge at all.

Sure, he was probably distracted, but Daniel was still right about him being easy to kill. Whether he knew how to kill him or didn't know what he really was is speculation. For all intensive purposes, we were not mislead.