Spirit Visage affects: Lifesteal, omnivamp, physical vamp, and healing from champs, jungle item, etc. But does it affect the following: Barrier sum, Heal sum, Triumpth heal, health plant, grasp heal, second wind?
Yes but keep in mind it only increases the heal for the person with spirit visage item. Spirit visage with a Yuumi is good however Yuumi should not build it herself.
So, yes, Spirit visage affects