Hallo!
I have seen the spell Tiny Hut is recommended in combat (e.g. The Complete Professor Q's Guide to Pathfinder Wizards). People within benefit from total concealment , but they can see outside. Thus, they can fire outside without any penalties.
The spell was clearly not designed for combat, but it seems to me that this interpretation is wholly legitimate (even if one could argue it would be OP compared to Displacement, for example).
A partial drawback, if I get it well, is that if more than 10 people enter in the hut, it dissolves.
But my main question concerns the usage of spells: "Missiles, weapons, and most spell effects can pass through the hut without affecting it". Now, what is meant by "most"? Which spells can freely pass through both ways and which ones can not? Do some affect it? Is it meant only that the hut can of course be dispelled?
Here's the wording of the spell:
Tiny Hut
School evocation [force]; Level bard 3, sorcerer/wizard 3
CASTING
Casting Time 1 standard action
Components V, S, M (a small crystal bead)
EFFECT
Range 20 ft.
Effect 20-ft.-radius sphere centered on your location
Duration 2 hours/level (D)
Saving Throw none; Spell Resistance no
You create an unmoving, opaque sphere of force of any color you desire around yourself. Half the sphere projects above the ground, and the lower hemisphere passes through the ground. As many as nine other Medium creatures can fit into the field with you; they can freely pass into and out of the hut without harming it. However, if you remove yourself from the hut, the spell ends...
The interior of the hut is a hemisphere... Although the force field is opaque from the outside, it is transparent from within. Missiles, weapons, and most spell effects can pass through the hut without affecting it, although the occupants cannot be seen from outside the hut (they have total concealment).
