[Actuarian]

They sound great but don't seem to be particulary useful spells.

Twice, early in a game, I put the caster in the front row, set my melee troops to hold and attack, and scripted the caster to cast flying shards for a couple of turns and then cast one of the 3 spell songs. Both times the AI overrode the script and kept casting shards even though the enemy troops were definately in range.

I really wanted to see how the spell worked, so I attacked a province with no archers(I also had no archers), and set my troops to guard commander. The AI still overrode the script and kept casting shards.