Ethereal Circle of Might
I surround this area in an Ethereal Circle of Might.
This spell creates a 10-foot diameter dome shaped barrier that blocks all effects, and beings from passing through.
A Caster must draw a circle on the ground and then state the verbal of the spell to become active, throwing a packet to their feet in the middle of their circle.
This spell may be raised and lowered by the casters command, by stating Circle up or Circle down. If the Circle is active but down anything may pass, once up nothing may leave or enter including magic.
To signify the Circle is up the caster or someone in the circle should raise their hand up above their head and lower their hand if the barrier is down.
Special Note, it is highly recommended the caster mark the Circle clearly, Safely, and properly. Outdoors on the grass powder such as chalking works well, and at night multiple glow sticks around the border are an excellent marker. Cutting into a wood Floor, or chalk on a deck are not good ideas for obvious reasons.