Drown

You create water in the lungs of the
subject, causing it to begin drowning
as if it had failed to continue
holding its breath. The subject’s hit
points immediately drop to 0, and it
falls unconscious. In the next round,
it loses another hit point (bringing its
hit points to –1) and is dying. In the
following round, it dies.
Coughing and other attempts by the
subject to physically expel the water
from its lungs are useless. However,
another creature can stabilize the
subject by making a DC 15 Heal check
on the creature before it dies.
Undead, constructs, creatures that
do not need to breathe, and creatures
that can breathe water are unaffected
by this spell.