I've been playing quite a few games against the AI as part of the tournament, and what always seems to happen is that one AI on the opposing team does something or gets something and suddenly becomes unkillable.  The last game I played, everyone in game was about level 12-13, and rook on the other team is level 17 or something.  I turn my back for a minute and suddenly he's moving twice my speed, and hits me 2-3 times a second for 500-600 damage melee hits.  Since the AI is too stupid to kill the citadel in a citadel match, I tried stacking attack speed similarly. I was wielding an Orb of Veiled Storms, Mage Slayer, Ashkandor, parasite egg, and doomspite grips, and I was still slower than him, doing only 100 damage/hit with 600-700 attack stat.  He gained so much life from meleeing enemies that his HP wouldn't drop below 16000 healh, and he could effortlessly kill me while on my healing crystal without taking any damage. 

I wouldn't really complain but it seems every game I play the AI on hard around level 14-16 they get something that makes them move/attack/hit twice as fast, and I can't figure it out.  Since the game doesn't let you see what the opponent bought during the game (a feature that's sorely needed), how do I find out what I'm missing?