A to Z: Vacuum

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Vacuum
Available to: Magic-users (dimensionalists & elementalists)
Level: 3
Duration: 1 round per level
Range: 240'

This spell causes the instantaneous removal of all forms of gas, including air, from a spherical volume of 5' radius per level of the caster, creating a vacuum. Creatures inside the vacuum suffer 1d4 damage per round due to depressurization, but may move freely. Air-breathing creatures will begin to suffocate if they remain in the affected area. Sound is also prevented from propagating through and from entering the vacuum, creating an area of absolute silence.

When the spell's duration comes to an end, the surrounding air rushes back in, filling the vacuum.

Due to its gas removing effect, this spell is occasionally useful as a defense against spells such as cloudkill.