Wearing armor limits a caster's Ability to perform precise and routine gestures necessary for spellcasting, especially in the
Arcane and
Primal
Sphere of Magic. However, this limitation does not apply to the
Divine
Sphere of Magic, which power is drawn from the outer
Planes or other higher beings.
When Casting a
Spell while wearing armor, and the spell requires a
Somatic Spell Component (hand gestures and movements), or
Material Spell Component (requires a free hand to grab and manipulate the material spell component) an
Armor Bending Roll is required, with a fixed
DC of 5 + Armor's
AC vs. the Armor Skill Roll of that respective Armor Type.
It should be noted that using magical objects to cast a spell, such as a scroll, to does NOT require a Armor Bending Roll.
Investing Skill Points in the
Armor Skill not only grants benefits specific to that armor type but also improves the caster's success in
Casting
Spells wearing that armor type.