# 法術 **法術** are offensive abilities that deal damage to targets based on damage defined by skill gems. Skills that deal spell damage have a Spell gem tag. Spell damage is one of four [[damage]] sources. ## Spell Damage Item Mod Prefixes **Spell Damage** is available as three different families of [Item Affixes](Modifiers), all of which are prefixes: - Spell Damage - Weapon Spell Damage - Weapon Spell Damage and Mana The Spell Damage prefix is only found on amulets. The other two families of prefixes are found on wands, daggers, sceptres, int-only shields, and staves. The Spell Damage bonus on a staff has as higher range than the same prefix on one-handed items. In addition, most wands come with an implicit modifier for increased Spell Damage. [[Righteous Fire]] adds [more](Stat) Spell Damage to your other spells while it is in effect.