I was in the 2nd floor of the Crypt, fighting shadow warriors and stuff like that.
almost in the end Xanos was killed and i left him behind (i don't know if it's only with me, but he is useless, can't hit a thing and only uses his firebal (most of times in creatures that are immune to it). After that i went to face the shadow Lord. But i was surprised that NO ONE IFLICTED DAMAGE ON ME!
Something happened and i became invincible!!!
Have you ever seen it before?