Can Focused Spell metamagic feat be used with Ball Lightning?

[Ender730]

Just wonder if the Focused Spell metamagic feat can be used with Ball Lightning?

[meabolex]

Yes, but the ball lightning globes must affect 2 or more creatures at once when the spell is cast.

PRD wrote:

When casting a spell that affects or targets more than one creature, you can choose one target or creature within the spell effect.