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From Pathfinder #220: Crypt of Runes, which isn't enabled.

Aegis of Envy

ACTION
Activity 2 actions

Frequency once per day

Effect Spend 1 Mythic Point. The spirits of eight runelords of envy (Naaft, Tannaris, Ivamura, Jurah, Chalsardra, Esedrea, Zarve, Desamelia, and Phirandi) swirl about you for 1 minute. While at least one of the spirits remains, whenever you take damage, you can use a reaction that has the concentrate trait to gain resistance 10 to that damage, or resistance 20 if the damage was dealt by Xanderghul, the runelord of pride. Each time you use this feat to gain resistance, one of the spirits disappears.
Pathfinder #220: Crypt of RunesORC