Lesser Repercussion

[Aliatris]

Lesser Repercussion
Abjuration (Force)
Level: Sor/Wiz 3
Components: V, S, M
Casting Time: 1 action
Range: Personal
Target: You
Duration: 1 round per level (d)
Saving Throw: Fortitude half
Spell Resistance: Yes

This spell surrounds you in a billowing aura of
force that covers you completely from head to toe.
This aura glows, but does not provide sufficient
illumination to act as a light source. While lesser
repercussion is active, the wearer cannot make
effective Hide checks against a target he does not
have at least 50% cover from.

The aura cannot be
concealed through illusion or other means without
negating its effects completely. While this spell
is active, any melee weapon, touch, or unarmed
attack that successfully hits you and does damage
has 50% of that damage rebounded unerringly back
on the attacker. A target who successfully evades
repercussion damage through Spell Resistance does
not end this spell prematurely and must check again
each time this spell attempts to damage it.

[Taerom]

This is a cool spell.

[Isolrem]

Too strong I think...
The only disadvantage seems to be that you can't hide, but why would you want to with a repercussion spell?
That aside, the spell effectively guarantees half returned damage for warrior classes, I don't want to calculate how much that adds to the average wizard's own spell damage but it seems to be quite a lot.

In D&D the spell is less used because it requires wizards to be within melee distance of enemies, when most stay in the back.
In FK there isn't much difference...

So, very strong spell, much to strong for "lesser" repercussion.