As far as I understand we are not using the battlemagic rules (0th level realm spells), if we are using those, she will not attach herself to the archers but instead bombard the enemy. Otherwise, just stick with the archers and fling lightning bolts and fireballs.
What is the difference between 'bombard the enemy' and 'fling lightning bolts'? Just use some good descriptions of how you are using your magic powers.
There is a big difference between sticking with the archers - casting fireballs and lightning bolts; and not joining a unit and instead casting level 0 battlespells, which is what the question was about. One option provides a unit with +2 attack, morale and +1 defence. The other option does not boost any unit, but instead maximises destruction. I wanted to know if I had the option of maximizing destruction
The truth is somewhere in between, as far as I understood Jon. Apparantly a caster can attatch herself to a unit and also do additional damage through her spellcasting - doing a few hits here and there. Not what is in the guide, but a good middle route I think. I dunno if this is a general rule or just what's being used for this war move until the Regent Guide is finished on the subject.
I'll admit that my descriptions aren't very colorful at the moment, that is on purpose though. I want to get my posts up asap, as we need to finish this... in 22 hours. Colorful takes more time for me to write, so right now expedience takes priority.