Sheltering

Additional sources of Sheltering: Additional sources of Insightful Sheltering:
 * A Sapphire of Defense (blue augment) also provides an enhancement bonus to PRR/MRR and therefore does not stack with Sheltering.
 * +2 / +4: Double Helix Set/Epic Double Helix Set
 * Magical Resistance: +x Insight items offer Insight bonus to MRR, just like Insightful Sheltering.