Abyssal Might(Book of Vile Darkness, p. 84)
Conjuration (Summoning) [Evil]
Level: Blackguard 3, Demonologist 3, Cleric 4, Sorcerer 4, Wizard 4,
Components: V, S, M, Demon
Casting Time: 1 action
Duration: 10 minutes/level
The caster summons evil energy from the Abyss and imbues himself with its might. The caster gains a +2 enhancement bonus to Strength, Constitution, and Dexterity. The caster's existing spell resistance improves by +2.
Material Component: The heart of a dwarf child.