The spell Battle Cry is broken.
The (rather poor) description of the spell seems to indicate that the effect would be that any of your troops whose initiative-turn comes after the next enemy's (all of them?) action would be move up in the initiative-order before the enemy's action.
When one casts the spell, however, not only do all those units get moved up in the initiative-order, but they get to act multiple times before the enemies can, giving a huge, probably undesired, advantage to the caster's army.