When cast, this spell weakens your enemies defenses.
Weaken Defenses: Ob3^, 3 Actions
Origin: Presence
Area of Effect: Presence
Element: Earth
Impetus: Tax
Duration: Sustained
Resource Points: 12
Meeting the obstacle lowers the effectiveness of armor and shields by one die (-1D). Exceeding the obstacle reduces them further (-1D per additional success).
Weapon Length: as Spear (longest)
Range: as Thrown (1D/1D) 30 Paces
Spell is only effective against manufactured (“Earth” based) armor.
(This is the type of spell a mage would cast to aid his companions in battle.)
No Sigils, distilled origin with area, and element with duration (pretty straight forward abstraction).