Sanguine Handicap

School: necromancy [blood]
Level: sanguine sorcerer 3
Casting Time: 1 standard action
Components: V, S, F (a dagger)
Range: close (25 ft. + 5 ft./2 levels)
Target: one being
Duration: instantaneous
Saving Throw: Fortitude negates
Spell Resistance: yes
Description: You cause the target of Sanguine Handicap to begin to bleed for 3 points of damage each round. This effect persists until they die, unless it is ended prematurely via a Heal check with a DC of 18 or via the application of an effect that restores hitpoints.
Special: While the target of Sanguine Handicap is afflicted by multiple bleed effects, they are also subject to the following effect:
Whenever they cast a spell that has a somatic component, they must roll a d12; if the result of their roll is less than [x], they suffer a set of harsh cramps which severely limit their range of motion, in which case they fail to cast that spell.
[x] is equal to your constitution modifier