1) Aero and Hydro are a low damage and high CC combination, because of the armor system that it pretty weak in DOS2. Without earth fire can hardly max out it damage output, because there is less stuff to explode.
2) Shield throw is one of the strongest warrior skills in my opinion and armor up gives a lot of sustain. For my warriors are not main damage dealer, but those who keep the enemies down, after they lost their armor. Two-handed would probably offer best damage output, dual wield not as good, because some skills only use the main hand weapon.
3) Yeah, summoning on archer is quite pointless, archer class is probably the strongest in current system. Giving him a second class for other purpose than mobility or utility just makes him weaker.
4) A skill like Medusas head is far better in giving magical cc for those who lost magical armor also physical CC like knowdown is still the strongest cc in game. Air also often has the chance to hit your own guys, though a skill like teleport is always handy.
