Proc Self Invulnerability
Proc Self Invulnerability is the effect of Invulnerable Mail in the WoW Forever client.
When struck in combat has a 5% chance to make you invulnerable to melee damage for 3 sec. This effect can only occur once every 10 sec.
Items with this effect
Data from the WoW Forever client, build 1.60.1.70862, extracted .