Tattoo of the Horizon Star (Level 20)
The mark of Caiphon, the Horizon Star, resembles a toothy maw that widens and grows as the wearer draws closer to his doom.
Lvl 20 . . . 125,000 gp
Requirement: You must have the Fate of the Void pact boon.
Property: When you spend an action point to take an extra action, all enemies in a close burst 5 centered on you take 10 radiant damage and are blinded until the end of your next turn.
Curse: When you fail a death save, you take damage equal to your level.