How about some extra damage?

WEAKNESS M1–6

School necromancy (Curse)

Casting Time 1 standard action

Range close (25 ft. + 5 ft./2 levels)

Targets one living creature

Duration 1 round/level

Saving Throw Fortitude negates; Spell Resistance yes

With a vile gesture and a dark word, you cause a target to lose the ability to repair those small bumps and scrapes. It begins to take extra damage as all the small cushions in its body begin to fail The target takes additional damage from any attack while under the effect of this spell. The additional damage is of the same type as the original damage.

1st: 1d4 additional damage

2nd: 3d4 additional damage

3rd: 5d4 additional damage

4th: 7d4 additional damage

5th: 9d4 additional damage

6th: 11d4 additional damage

Thoughts?