Sanguine Promotion

School: necromancy [blood]
Level: sanguine sorcerer 8
Casting Time: 1 standard action
Components: V, S
Range: touch
Target: one sanguine horror
Duration: 1 hour/level
Saving Throw: Fortitude negates (harmless)
Spell Resistance: yes (harmless)
Description: You gain a +8 competence bonus on any attack roll that is made as part of a Blood Barrage attack. Additionally, while you are within the area of effect of a sanguine fountain, you gain a +[x] circumstance bonus on any attack roll that is made as part of a Blood Barrage attack.
[x] is equal to the number of Blood Charges stored within that fountain divided by thirty (rounded down)