Level: 3
Range: Touch
Components: V,S
Casting Time: 4 segments
Duration: Special
Saving Throw: Neg.
Area of Effect: One creature

By means of
this spell, a magic-user can affect
another spellcasting being. (This spell
will not work on creatures who have
spell-like natural powers.)

The magic is
lost and wasted if cast on a nonspellcaster.

The backlash leaves only a
faint magical trace, and can only be
removed by a remove curse or stronger
spell, not by a dispel magic.

It does not
take effect until the victim employs an
offensive spell that fails (regardless of
distance or time removed from the
placing of the backlash). A backlash will
occur when a victim’s TARGET is unaffected
by making its save, when
the victim has spellcasting interrupted
or ruined, or when an offensive spell is
incorrectly used on a target that is
immune to it.

The backlash causes the
spell to work (even if the casting was
botched) with full effects upon the caster
of the offensive spell, who is allowed
no saving throws or immunities in this
case.

The backlash only works once,
although any number of backlash spells
may be placed on a single spellcaster;
only one will take effect at a time.
 
 

The Shadowtome

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Books of the Forgotten Realms