Guardian

Guard allies within 350 units of you, and allies you target with spells for 2.5s. While Guarding, if you or the ally take more than a small amount of damage over the duration of the Guard, both of you gain a shield for 1.5s.

Cooldown: 75 – 35.9 seconds Shield: 40 – 163 + 20% of your ability power + 6% of your bonus health Proc Threshold: 50 – 179 postmitigation damage