Generals need to have the ability to control minion behaviors. They don't need to be complex:
Priests - Stay back and heal
Archers - Stay behind the general and attack
Minotaur - Act as shield.
General's Summon - Act as shield, stay back
All units - Prefer Demigods as targets, Prefer grunts as targets.
These would be really nice to have since the game is so limiting on how you can control the minions.