Verified for patch 16.8.1

Unending Despair

Whenever a Shield on the holder breaks, 150% of that Shield's initial value is dealt to the nearest enemy as magic damage.

Source

Artifact

Effects

Armor: 40
Health: 350
PercentDamage: 150

Unending Despair enables

Shield On the Menu

Grants temporary HP that absorbs damage before the unit's real Health is touched.