If you receive a hidden affliction from an attack that does ONLY mental afflictions, FirstAid will now always attempt to use FOCUS before it tries to waste your tree tattoo cooldown on curing those hidden afflictions.

Specifically, this works on the following skills:
Tarot - Moon (hidden when eclipse active)
Shamanism - Warding
Primality - Staticburst (hidden when boosted)
Numerology - Changeheart
Fury - Shatter

Penned by my hand on an unknown date.