Mana Ward
Origin Mana Scope Impressive
Archetype Creation Range Touch
Dominion Reality Area Aura paces
Configuration Might 45 (Ritual 60) Duration One Action Interval
Effect Level S:4, O:3 Potency Impressive
Noise Level S:3, O:3 Intricacy Impressive
Base Paradigm Cost S: 44, O: 30
Magicology Levels Power Change Control Creation Illusion Sensitivity
Description
Mana Ward protects things inside the area of effect from the effects of any Mana Shaping (harmful or otherwise).  It isn't foolproof - the Ward can be beaten - but it offers an improved measure of protection.  Such Wards are typically Imbedded into appropriate objects that protect all in their area of effect.
Effects
The Ward functions by increasing the effective Affinity of objects or beings in the warded area, by 1/2 of the Potency of the Ward.  This increases both the difficulty of any Effects Trials targeting the warded item(s) and the rank of any appropriate Passive Resistance Trials.
Scope Area Scope (3 points)
Scope is altering a Form (3 points)
Range is Touch: Slight (1-3)
Area is Aura paces in radius
Duration Interval is one Action Interval (Slight, 1-3) 
Potency Potency 12 grants +6 increase to the Affinity of the warded item(s)
Intricacy Creation of a complex Reality construct: Impressive (10-20)
Total Base Cost Spontaneous: 44, Optimized: 30
Temper Aspects Imbed is normally used (15 points for a fully optimized paradigm)
Mechanism is normally used with Imbedded effects (5 points or more)
Sophistication is useful to protect the effect from dispelling, while Widen is useful to grant an increased area of effect.  Build may also be used (see below).
Notes
Obviously, this Ward cannot be Imbedded as a spontaneous effect - it requires a fully optimized Mana Ritual to Imbed the Ward into an object.  The Ward might be cast spontaneously without imbedding it, however.
Wards are typically linked with another Shaping using a Build Temper Aspect to alert someone if the Ward is activated.