Thank you both for commenting, so to be clear, you think, it is only ONE SINGLE bolt that can be called upon in one round for "Call Lightning Storm"?
If so, how can the spell last ten rounds (caster level 10), and encompass 15 bolts when they can never be used?
Sorry to be a pain, but it is something that is bugging me. Playing a druid with no weapons (chosen to use nature).
Thank you.