Agility: Hand-eye coordination and full-body agility, used to target and dodge magic spells.
Strength: Raw muscular power and ability to resist pain and physical damage.
Wisdom/Lore: Knowledge of arcane principles and theories, used to create and identify magical effects.
Spellcraft: Ability to cast various magic spells through gestures, incantation, or will.
Willpower: Mental fortitude and ability to resist stress and metaphysical damage.
Casting a spell ranges in cost from almost nothing or spell components to mental effort or physical harm. Many spells require aiming a magic ray from the tip of a wand. Others require physical objects, spoken incantations, arcane gestures, full-body movements, or complex rituals.