Entropic Sight
Your Eye of Entropy perceives unseen opponents.
Preqrequisite
Third Eye.
Benefit
Once per day, you can use see invisibility as a spell-like ability. Your caster level is equal to your character level.
Source
Horizons of the Vast: Allies Against The Eye pg. 51
Dragonscript
ID
bb9acfee30a40ccda63b2e3b
Preqrequisite
{character.feats contains '5cab87d085e1ea5eea92d3a7'};
Benefit
append 'd7ac873e51aae90931f46c7d.1' to character.spells;