Magic:Darkfire

Evocation [ Fire ]
Level: Clr 3
Innate Level: 3
Component(s): V, S
Casting Time: 1 action
Range: Touch
Target: One Weapon
Duration: 1 Minute/Level
Counter(s): --
Saving Throw: None
Spell Resistance: Yes
Metamagic: Extend, Quicken, Silent, Still
Energy Substitution: Yes

Gives a melee weapon +1 fire damage per four caster levels with bonuses for militant levels.