Questions about the passive revive effect of Guardian Angel

After extensive searching, I still cannot find answers to the following interactions questions, and would love if someone who knows could help: I understand that Spirit Visage increases the HP given on Guardian Angel's revive, but am trying to find out what else might affect the amount of HP given on the revive. 1: Does Windspeaker's Blessing increase the HP given on revive? 2: Does Runic Armor increase the HP given on Guardian Angel's revive? 3: Does Ardent Censer increase the HP given on Guardian Angel's revive? 4: Does Mikael's Crucible increase the HP given on Guardian Angel's revive? 5: For as many of these that do affect the HP given on revive, how do they stack (ie. multiplicatively or additively), and what would be the maximum percentage of HP gained through the revive from Guardian Angel from these effects? 6: Are there any other ways to increase the HP given on Guardian Angel's revive? I am not able to test these myself atm, but would love to know the answers. Thanks in advance for the assistance.