Warden's Mercy fires on ward granted. On a piece that carries it it reads: Granting a ward also heals its bearer for {value}% of their maximum health.

Word for word it is Granting a ward also heals its bearer for {value}% of their maximum health, and the number in it grows with the gear: 4 to start, 0.2 more for every item level.

0 bases carry it.

Awakening can reach it too — 4 spirit paths pick it up at Spirit Level 3: Glacieraegis, Squallaegis, Gloamaegis and Quarryaegis.