Power Investiture as Modified Magery

Power Investiture as Modified Magery has Power Investiture interpreted as modified magery GURPS Thaumatology p 67:
*Magery (Functions as a Different Talent ±0%; Sanctity Replaces Mana: ±0%; No Zero-Level Requirement +10%; Inspired Learning +20%; No Spell Prerequisites +30%; Pact -10%; No Magic Item Sensitivity -20%; Limited spell list -30%)
category:Modified Advantages
category:rules