Acting during the surprise round

[KrythePhreak]

What is the ability(s) that let a character act during the surprise round even if they are surprised?? It seems like there was one but I cannot recall it atm.

[Cap. Darling]

Diviners have it. And so does sohei monks and kensai maguses.

[KrythePhreak]

The diviners ability was what I was thinking of. I had read over it while looking at Arcane Trickster stuff one day. Thanks Cap