From Edge of Darkness Wiki
Unpalpable Aura
Pandorans instinctively do not like the tenor of the Promethean’s Azothic radiance. While its effect on them is the same — it awakens them from Dormancy — they’d prefer to choose a different target from which to gain their Pyros sustenance. If given a choice, such as if there are more Prometheans present than the one with this Merit, they will most likely attack the other Prometheans first. If the Promethean with this Merit is the only food source available, this Merit will not prevent them from attacking, but it does give subtract two from the result of their Initiative rolls when first determining initiative ranks in an encounter with the Promethean.