Cleon
Legend
I thought we'd ruled out option 3 already.
How do option 1 and 2 differ? Let me count the ways...
Option 1 allows them to switch between shapes as some type of action and maintain the given shape with no cost. One shape or the other is always on. Option 2 requires an action to use, gives the cone as an instantaneous blast, and turns off the spherical aura for a short while. This also contrasts with option 3, which adds the cone on top of the sphere for a short blast without affecting the sphere.
Anyway, my reading of the original monster is closest to option 1, but I could be persuaded to go with another option.
Well I'm preferring Option 3, so we appear to be at an impasse.