Shield and heal effects on other units grant both of you Attack Speed and their attacks deal additional on-hit magic damage.
About
45 Ability Power
10% Heal and Shield Power
125% Base Mana Regen
4% Move Speed
Sanctify:
Healing or Shielding an ally enhances you both for 6 seconds, granting 25% Attack Speed and 20 magic damage On-Hit.
Aether Wisp
Forbidden Idol