Bone Sphere

Bone Sphere
The Bone Sphere is the divine sphere that grants protection by fortifying and manipulating the bones of mortal creatures. While primarily used for protecting those under its influence, it can also be used to harm other beings that depend on their skeletal structure.
Mastered Prayers: You master Prayer of Bone and Wall of Bones.
Prayer of Bone
Magic Resistance: No
Basic Divine Prayer
Interruptive Action
Potency: [1d4 + Divine Rank]
Trigger: A creature within range makes a [Fundamentals:Resilience
Range: 50ft
Effect: With a quick surge of divine strength, you ward your target's body in the nick of time. The triggering creature gains a +4 bonus to the check.
First Shell
Prerequisite: Divine Rank 4
Effect: Your bones become fortified with divine energy, making them far tougher than normal. You gain a +3 bonus whenever you make a Injury Resilience Check.
Second Shell
Prerequisite: Divine Rank 6
Effect: Blessed by divine energy, you generate a floating guardian grown from your own skeleton. You have an animate shield of bone that protects you. Gain a +2/+2 Shield bonus to AC, and a +2 Shield bonus to Touch and Reflex. If the bone shield is ever damaged or destroyed, you can make a new one by taking an extended rest.
Third Shell
Prerequisite: Divine Rank 8
Effect: Seeping your divine essence from your bones into those of your victim, you cause them to become frail. Whenever you damage a creature and force it to make an Injury Resilience Check, it takes a -5 penalty to the check.