What does Ignatian Spirituality do in AoE3?

Unit Class: hit points +5%. The game says: "All units gain slightly more hitpoints and very slowly heal, even whilst in combat."

Home City card

Ignatian Spirituality

Ignatian Spirituality (tech ID DEHCJesuitSpirituality) is a Home City card in AoE3: Definitive Edition 100.19.18309, in the decks of 1 civilization, sent from the Industrial Age. Effect: Unit Class: hit points +5%.

Quick answers (3)

Which civilizations have the Ignatian Spirituality card?: Ethiopians.
What does Ignatian Spirituality do in AoE3?: Unit Class: hit points +5%. The game says: "All units gain slightly more hitpoints and very slowly heal, even whilst in combat."
What is the tech ID of Ignatian Spirituality?: DEHCJesuitSpirituality.

All units gain slightly more hitpoints and very slowly heal, even whilst in combat.

What it does

Unit Class: hit points +5%

1 further effect (interface, visuals or AI) not listed.

Cost: 1
Sent from: IV
Times it can be sent: 1
Game ID: DEHCJesuitSpirituality

In these decks

EthiopiansIV×1

Source: techtreey.xml and the Home City files, AoE3: DE 100.19.18309 (build 25040513).