You
create an opaque, stationary barrier of solid
energy (a force field) within immediate range.
The barrier is 10 feet by 10 feet (3 m by 3 m) and
of negligible thickness. It is a level 2 barrier and
lasts for ten minutes. It can be placed anywhere
it fits, whether against a solid object (including
the ground) or floating in the air. Each level of
Effort you apply strengthens the barrier by one
level. For example, applying two levels of Effort
creates a level 4 barrier.