Warp Destiny

Races of Destiny (RD)Supplementals (3.5)
School
Transmutation
Casting Time
1 immediate action
Components
V, S
Range
Personal
Target
The caster
Duration
Instantaneous
Saving Throw
None (harmless)
Spell Resistance
No (harmless)

You reshape your personal fate to potentially avoid some tragic action, but the ripples caused in your destiny have unpleasant side effects for a brief period.
After learning the result of a saving throw that you have rolled, you may cast this spell to reroll the save, but with an insight bonus equal to your caster level (maximum +20).
Alternatively, if you are struck in combat you can apply the insight bonus to your AC against the attack (even if flat-footed); if your new AC exceeds the attack roll, the attack misses you.
Casting this spell has a side effect: until the start of your next turn, you take a -4 penalty on all saving throws and to your AC.