AI thoughts

[Loopy]

The OP never said anything about the predictableness of the AI, only about the intelligence. They aren't one and the same. That said...

Any intelligent opponent must be predictable. The idea that unpredictableness = intelligence is the complete opposite of reality. Intelligence implies a plan of action and a plan of action implies predictability.

Disabling spells like Target, Fear, Sheep would be painfully unfun for players if enemy heroes actually utilized them to 100% efficiency. A lot of things would need a lot of balance changes if that were the case. The game would literally be impossible fighting a powerful mage hero with a non-mage otherwise.